Cert Tcl Reference Documentation
Cert
Current Version: 10.0.0
Digital certificate component / class
Object Creation
set myCert [new CkCert]
Properties
AuthorityKeyId
# ckStr is a CkString
CkCert_get_AuthorityKeyId $myCert $ckStr
set strVal [CkCert_get_authorityKeyId $myCert]
The authority key identifier of the certificate in base64 string format. This is only present if the certificate contains the extension OID 2.5.29.35.
topAvoidWindowsPkAccess
set boolVal [CkCert_get_AvoidWindowsPkAccess $myCert]
CkCert_put_AvoidWindowsPkAccess $myCert $boolVal
Applies only when running on a Microsoft Windows operating system. If 1, then any method that returns a certificate will not try to also access the associated private key, assuming one exists. This is useful if the certificate was installed with high-security such that a private key access would trigger the Windows OS to display a security warning dialog. The default value of this property is 0.
topCertVersion
set intVal [CkCert_get_CertVersion $myCert]
The version of the certificate (1, 2, or 3). A value of 0 indicates an error -- the most likely cause being that the certificate object is empty (i.e. was never loaded with a certificate). Note: This is not the version of the software, it is the version of the X.509 certificate object. The version of the Chilkat certificate software is indicated by the Version property.
topCspName
# ckStr is a CkString
CkCert_get_CspName $myCert $ckStr
set strVal [CkCert_get_cspName $myCert]
(Relevant only when running on a Microsoft Windows operating system.) If the HasKeyContainer property is 1, then the certificate is linked to a key container and this property contains the name of the associated CSP (cryptographic service provider). When a certificate is linked to a key container , the following properties will provide information about the key container and private key: CspName, KeyContainerName, MachineKeyset, and Silent.
DebugLogFilePath
# ckStr is a CkString
CkCert_get_DebugLogFilePath $myCert $ckStr
set strVal [CkCert_get_debugLogFilePath $myCert]
CkCert_put_DebugLogFilePath $myCert $strVal
If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.
This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:
- a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
- the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
- there is an internal problem (bug) in the Chilkat code that causes the hang.
Expired
set boolVal [CkCert_get_Expired $myCert]
Has a value of 1 if the certificate or any certificate in the chain of authority has expired. (This information is not available when running on Windows 95/98 computers.)
topExtendedKeyUsage
# ckStr is a CkString
CkCert_get_ExtendedKeyUsage $myCert $ckStr
set strVal [CkCert_get_extendedKeyUsage $myCert]
Returns a string containing a comma separated list of keywords with the extended key usages of the certificate. The list of possible extended key usages are:
- serverAuth - TLS WWW server authentication
- clientAuth - TLS WWW client authentication
- codeSigning - Signing of downloadable executable code
- emailProtection - Email protection
- timeStamping - Binding the hash of an object to a time
- OCSPSigning - Signing OCSP responses
ForClientAuthentication
set boolVal [CkCert_get_ForClientAuthentication $myCert]
1 if this certificate can be used for client authentication, otherwise 0.
topForCodeSigning
set boolVal [CkCert_get_ForCodeSigning $myCert]
1 if this certificate can be used for code signing, otherwise 0.
topForSecureEmail
set boolVal [CkCert_get_ForSecureEmail $myCert]
1 if this certificate can be used for sending secure email, otherwise 0.
topForServerAuthentication
set boolVal [CkCert_get_ForServerAuthentication $myCert]
1 if this certificate can be used for server authentication, otherwise 0.
topForTimeStamping
set boolVal [CkCert_get_ForTimeStamping $myCert]
1 if this certificate can be used for time stamping, otherwise 0.
topHasKeyContainer
set boolVal [CkCert_get_HasKeyContainer $myCert]
(Relevant only when running on a Microsoft Windows operating system.) Indicates whether this certificate is linked to a key container. If 1 then the certificate is linked to a key container (usually containing a private key). If 0, then it is not.
When a certificate is linked to a key container , the following properties will provide information about the key container and private key: CspName, KeyContainerName, MachineKeyset, and Silent.
IntendedKeyUsage
set intVal [CkCert_get_IntendedKeyUsage $myCert]
Bitflags indicating the intended usages of the certificate.
The flags are:
Digital Signature: 0x80
Non-Repudiation: 0x40
Key Encipherment: 0x20
Data Encipherment: 0x10
Key Agreement: 0x08
Certificate Signing: 0x04
CRL Signing: 0x02
Encipher-Only: 0x01
IsRoot
set boolVal [CkCert_get_IsRoot $myCert]
1 if this is the root certificate, otherwise 0.
topIssuerC
# ckStr is a CkString
CkCert_get_IssuerC $myCert $ckStr
set strVal [CkCert_get_issuerC $myCert]
The certificate issuer's country.
topIssuerCN
# ckStr is a CkString
CkCert_get_IssuerCN $myCert $ckStr
set strVal [CkCert_get_issuerCN $myCert]
The certificate issuer's common name.
topIssuerDN
# ckStr is a CkString
CkCert_get_IssuerDN $myCert $ckStr
set strVal [CkCert_get_issuerDN $myCert]
The issuer's full distinguished name.
topIssuerE
# ckStr is a CkString
CkCert_get_IssuerE $myCert $ckStr
set strVal [CkCert_get_issuerE $myCert]
The certificate issuer's email address.
topIssuerL
# ckStr is a CkString
CkCert_get_IssuerL $myCert $ckStr
set strVal [CkCert_get_issuerL $myCert]
The certificate issuer's locality, which could be a city, count, township, or other geographic region.
topIssuerO
# ckStr is a CkString
CkCert_get_IssuerO $myCert $ckStr
set strVal [CkCert_get_issuerO $myCert]
The certificate issuer's organization, which is typically the company name.
topIssuerOU
# ckStr is a CkString
CkCert_get_IssuerOU $myCert $ckStr
set strVal [CkCert_get_issuerOU $myCert]
The certificate issuer's organizational unit, which is the unit within the organization.
topIssuerS
# ckStr is a CkString
CkCert_get_IssuerS $myCert $ckStr
set strVal [CkCert_get_issuerS $myCert]
The certificate issuer's state or province.
topKeyContainerName
# ckStr is a CkString
CkCert_get_KeyContainerName $myCert $ckStr
set strVal [CkCert_get_keyContainerName $myCert]
(Relevant only when running on a Microsoft Windows operating system.) If the HasKeyContainer property is 1, then the certificate is linked to a key container and this property contains the name of the key container.
When a certificate is linked to a key container , the following properties will provide information about the key container and private key: CspName, KeyContainerName, MachineKeyset, and Silent.
LastErrorHtml
# ckStr is a CkString
CkCert_get_LastErrorHtml $myCert $ckStr
set strVal [CkCert_get_lastErrorHtml $myCert]
Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.
topLastErrorText
# ckStr is a CkString
CkCert_get_LastErrorText $myCert $ckStr
set strVal [CkCert_get_lastErrorText $myCert]
Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.
LastErrorXml
# ckStr is a CkString
CkCert_get_LastErrorXml $myCert $ckStr
set strVal [CkCert_get_lastErrorXml $myCert]
Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.
topLastMethodSuccess
set boolVal [CkCert_get_LastMethodSuccess $myCert]
CkCert_put_LastMethodSuccess $myCert $boolVal
Indicate whether the last method call succeeded or failed. A value of 1 indicates success, a value of 0 indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:
- Any method that returns a string.
- Any method returning a Chilkat object, binary bytes, or a date/time.
- Any method returning a standard boolean status value where success = 1 and failure = 0.
- Any method returning an integer where failure is defined by a return value less than zero.
Note: Methods that do not fit the above requirements will always set this property equal to 1. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.
topMachineKeyset
set boolVal [CkCert_get_MachineKeyset $myCert]
(Relevant only when running on a Microsoft Windows operating system.) If the HasKeyContainer property is 1, then the certificate is linked to a key container and this property indicates whether the key container is in the machine's keyset or in the keyset specific to the logged on user's account. If 1, the key container is within the machine keyset. If 0, it's in the user's keyset.
When a certificate is linked to a key container , the following properties will provide information about the key container and private key: CspName, KeyContainerName, MachineKeyset, and Silent.
OcspUrl
# ckStr is a CkString
CkCert_get_OcspUrl $myCert $ckStr
set strVal [CkCert_get_ocspUrl $myCert]
If present in the certificate's extensions, returns the OCSP URL of the certificate. (The Online Certificate Status Protocol (OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate.)
PrivateKeyExportable
set boolVal [CkCert_get_PrivateKeyExportable $myCert]
(Relevant only when running on a Microsoft Windows operating system.) Indicates whether the private key was installed with security settings that allow it to be re-exported.
Revoked
set boolVal [CkCert_get_Revoked $myCert]
1 if the certificate or any certificate in the chain of authority has been revoked. This information is not available when running on Windows 95/98 computers. Note: If this property is 0, it could mean that it was not able to check the revocation status. Because of this uncertainty, a CheckRevoked method has been added. It returns an integer indicating one of three possible states: 1 (revoked) , 0 (not revoked), -1 (unable to check revocation status).
topRfc822Name
# ckStr is a CkString
CkCert_get_Rfc822Name $myCert $ckStr
set strVal [CkCert_get_rfc822Name $myCert]
The RFC822 name of the certificate. (The RFC822 name is one part of the Subject Alternative Name extension of a certificate, if it exists. It is often the only part of the SAN.)
If the certificate contains a list of RFC822 names then this property will return the comma separated list of names.
Starting in Chilkat v9.5.0.85, to get the complete Subject Alternative Name extension as XML, use the SubjectAlternativeName property.
topSelfSigned
set boolVal [CkCert_get_SelfSigned $myCert]
1 if this is a self-signed certificate, otherwise 0.
topSerialDecimal
# ckStr is a CkString
CkCert_get_SerialDecimal $myCert $ckStr
set strVal [CkCert_get_serialDecimal $myCert]
The certificate's serial number as a decimal string.
topSerialNumber
# ckStr is a CkString
CkCert_get_SerialNumber $myCert $ckStr
set strVal [CkCert_get_serialNumber $myCert]
The certificate's serial number as a hexidecimal string.
topSha1Thumbprint
# ckStr is a CkString
CkCert_get_Sha1Thumbprint $myCert $ckStr
set strVal [CkCert_get_sha1Thumbprint $myCert]
Hexidecimal string of the SHA-1 thumbprint for the certificate. (This is the SHA1 hash of the binary DER representation of the entire X.509 certificate.)
topSignatureVerified
set boolVal [CkCert_get_SignatureVerified $myCert]
Returns 1 if the certificate and all certificates in the chain of authority have valid signatures, otherwise returns 0.
topSilent
set boolVal [CkCert_get_Silent $myCert]
(Relevant only when running on a Microsoft Windows operating system.)
If the HasKeyContainer property is 1, then the certificate is linked to a key container and this property indicates that the key container will attempt to open any keys silently without any user interface prompts.
When a certificate is linked to a key container , the following properties will provide information about the key container and private key: CspName, KeyContainerName, MachineKeyset, and Silent.
topSmartCardNoDialog
set boolVal [CkCert_get_SmartCardNoDialog $myCert]
CkCert_put_SmartCardNoDialog $myCert $boolVal
If set to 1, then no dialog will automatically popup if the SmartCardPin is incorrect. Instead, the method requiring the private key on the smart card will fail. The default value of this property is 0, which means that if the SmartCardPin property is incorrect, a dialog with prompt will be displayed.
topSmartCardPin
# ckStr is a CkString
CkCert_get_SmartCardPin $myCert $ckStr
set strVal [CkCert_get_smartCardPin $myCert]
CkCert_put_SmartCardPin $myCert $strVal
Can be set to the PIN value for a certificate / private key stored on a smart card.
SubjectAlternativeName
# ckStr is a CkString
CkCert_get_SubjectAlternativeName $myCert $ckStr
set strVal [CkCert_get_subjectAlternativeName $myCert]
The subject alternative name (SAN) name of the certificate returned as XML. See the examples linked below.
SubjectC
# ckStr is a CkString
CkCert_get_SubjectC $myCert $ckStr
set strVal [CkCert_get_subjectC $myCert]
The certificate subject's country.
topSubjectCN
# ckStr is a CkString
CkCert_get_SubjectCN $myCert $ckStr
set strVal [CkCert_get_subjectCN $myCert]
The certificate subject's common name.
topSubjectDN
# ckStr is a CkString
CkCert_get_SubjectDN $myCert $ckStr
set strVal [CkCert_get_subjectDN $myCert]
The certificate subject's full distinguished name.
topSubjectE
# ckStr is a CkString
CkCert_get_SubjectE $myCert $ckStr
set strVal [CkCert_get_subjectE $myCert]
The certificate subject's email address.
topSubjectKeyId
# ckStr is a CkString
CkCert_get_SubjectKeyId $myCert $ckStr
set strVal [CkCert_get_subjectKeyId $myCert]
The subject key identifier of the certificate in base64 string format. This is only present if the certificate contains the extension OID 2.5.29.14.
topSubjectL
# ckStr is a CkString
CkCert_get_SubjectL $myCert $ckStr
set strVal [CkCert_get_subjectL $myCert]
The certificate subject's locality, which could be a city, count, township, or other geographic region.
topSubjectO
# ckStr is a CkString
CkCert_get_SubjectO $myCert $ckStr
set strVal [CkCert_get_subjectO $myCert]
The certificate subject's organization, which is typically the company name.
topSubjectOU
# ckStr is a CkString
CkCert_get_SubjectOU $myCert $ckStr
set strVal [CkCert_get_subjectOU $myCert]
The certificate subject's organizational unit, which is the unit within the organization.
topSubjectS
# ckStr is a CkString
CkCert_get_SubjectS $myCert $ckStr
set strVal [CkCert_get_subjectS $myCert]
The certificate subject's state or province.
topTrustedRoot
set boolVal [CkCert_get_TrustedRoot $myCert]
Returns 1 if the certificate has a trusted root authority, otherwise returns 0.
Note: As of version 9.5.0.41, the notion of what your application deems as trusted becomes more specific. The TrustedRoots class/object was added in v9.5.0.0. Prior to this, a certificate was considered to be anchored by a trusted root if the certificate chain could be established to a root (self-signed) certificate, AND if the root certificate was located somewhere in the Windows registry-based certificate stores. There are two problems with this: (1) it's a Windows-only solution. This property would always return 0 on non-Windows systems, and (2) it might be considered not a strong enough set of conditions for trusting a root certificate.
As of version 9.5.0.41, this property pays attention to the new TrustedRoots class/object, which allows for an application to specificallly indicate which root certificates are to be trusted. Certificates may be added to the TrustedRoots object via the LoadCaCertsPem or AddCert methods, and then activated by calling the TrustedRoots.Activate method. The activated trusted roots are deemed to be trusted in any Chilkat API method/property that needs to make this determination. In addition, the TrustedRoots object has a property named TrustSystemCaRoots, which defaults to 1, which allows for backward compatibility. It will trust CA certificates stored in the Windows registry-based certificate stores, or if on Linux, will trust certificates found in /etc/ssl/certs/ca-certificates.crt.
topUncommonOptions
# ckStr is a CkString
CkCert_get_UncommonOptions $myCert $ckStr
set strVal [CkCert_get_uncommonOptions $myCert]
CkCert_put_UncommonOptions $myCert $strVal
This is a catch-all property to be used for uncommon needs. This property defaults to the empty string, and should typically remain empty.
topUtf8
set boolVal [CkCert_get_Utf8 $myCert]
CkCert_put_Utf8 $myCert $boolVal
When set to 1, all "const char *" arguments are interpreted as utf-8 strings. If set to 0 (the default), then "const char *" arguments are interpreted as ANSI strings. Also, when set to 1, and Chilkat method returning a "const char *" is returning the utf-8 representation. If set to 0, all "const char *" return values are ANSI strings.
topValidFromStr
# ckStr is a CkString
CkCert_get_ValidFromStr $myCert $ckStr
set strVal [CkCert_get_validFromStr $myCert]
The date (in RFC822 string format) that this certificate becomes (or became) valid. It is a GMT/UTC date that is returned.
topValidToStr
# ckStr is a CkString
CkCert_get_ValidToStr $myCert $ckStr
set strVal [CkCert_get_validToStr $myCert]
The date (in RFC822 string format) that this certificate becomes (or became) invalid. It is a GMT/UTC date that is returned.
topVerboseLogging
set boolVal [CkCert_get_VerboseLogging $myCert]
CkCert_put_VerboseLogging $myCert $boolVal
If set to 1, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is 0. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.
topVersion
# ckStr is a CkString
CkCert_get_Version $myCert $ckStr
set strVal [CkCert_get_version $myCert]
Methods
CheckRevoked
Returns 1 if the certificate has been revoked, 0 if not revoked, and -1 if unable to check the revocation status.
Note: This method is only implemented on Windows systems. It uses the underlying Microsoft CertVerifyRevocation Platform SDK function to check the revocation status of a certificate. (Search "CertVerifyRevocation" to get information about it.)
Non-Windows (and Windows) applications can send an OCSP request as shown in the example below.
CheckSmartCardPin
Verifies that the SmartCardPin property setting is correct. Returns 1 if correct, 0 if incorrect, and -1 if unable to check because the underlying CSP does not support the functionality.
ExportCertDer
ExportCertDerBd
set status [CkCert_ExportCertDerBd $cerData]
Exports the digital certificate in ASN.1 DER format to a BinData object.
Returns 1 for success, 0 for failure.
ExportCertDerFile
set status [CkCert_ExportCertDerFile $path]
Exports the digital certificate to ASN.1 DER format binary file.
Returns 1 for success, 0 for failure.
topExportCertPem
set status [CkCert_ExportCertPem $outStr]
set retStr [CkCert_exportCertPem $myCert]
Exports the digital certificate to an unencrypted PEM formatted string.
Returns 1 for success, 0 for failure.
ExportCertPemFile
set status [CkCert_ExportCertPemFile $path]
Exports the digital certificate to an unencrypted PEM formatted file.
Returns 1 for success, 0 for failure.
ExportCertXml
set status [CkCert_ExportCertXml $outStr]
set retStr [CkCert_exportCertXml $myCert]
Exports a certificate to an XML format where the XML tags are the names of the ASN.1 objects that compose the X.509 certificate. Binary data is either hex or base64 encoded. (The binary data for a "bits" ASN.1 tag is hex encoded, whereas for all other ASN.1 tags, such as "octets", it is base64.)
Returns 1 for success, 0 for failure.
ExportPrivateKey
set ret_privateKey [CkCert_ExportPrivateKey]
ExportPublicKey
set ret_publicKey [CkCert_ExportPublicKey]
ExportToPfxBd
# includeCertChain is a boolean
# pfxData is a CkBinData
set status [CkCert_ExportToPfxBd $password $includeCertChain $pfxData]
Exports the certificate and private key (if available) to pfxData. The password is what will be required to access the PFX contents at a later time. If includeCertChain is 1, then the certificates in the chain of authority are also included in the PFX.
Returns 1 for success, 0 for failure.
ExportToPfxData
# includeCertChain is a boolean
# outBytes is a CkByteData (output)
set status [CkCert_ExportToPfxData $password $includeCertChain $outData]
Exports the certificate and private key (if available) to an in-memory PFX image. The password is what will be required to access the PFX contents at a later time. If includeCertChain is 1, then the certificates in the chain of authority are also included in the PFX.
Returns 1 for success, 0 for failure.
topExportToPfxFile
# pfxPassword is a string
# bIncludeCertChain is a boolean
set status [CkCert_ExportToPfxFile $pfxFilename $pfxPassword $bIncludeCertChain]
Exports the certificate and private key (if available) to a PFX (.pfx or .p12) file. The output PFX is secured using the pfxPassword. If bIncludeCertChain is 1, then the certificates in the chain of authority are also included in the PFX output file.
Returns 1 for success, 0 for failure.
FindIssuer
set ret_cert [CkCert_FindIssuer]
Finds and returns the issuer certificate. If the certificate is a root or self-issued, then the certificate returned is a copy of the caller certificate. (The IsRoot property can be check to see if the certificate is a root (or self-issued) certificate.)
Returns NULL on failure
GetCertChain
set ret_certChain [CkCert_GetCertChain]
Returns a certficate chain object containing all the certificates (including this one), in the chain of authentication to the trusted root (if possible). If this certificate object was loaded from a PFX, then the certiicates contained in the PFX are automatically available for building the certificate chain. The UseCertVault method can be called to provide additional certificates that might be required to build the cert chain. Finally, the TrustedRoots object can be used to provide a way of making trusted root certificates available.
Note: Prior to v9.5.0.50, this method would fail if the certificate chain could not be completed to the root. Starting in v9.5.0.50, the incomplete certificate chain will be returned. The certificate chain's ReachesRoot property can be examined to see if the chain was completed to the root.
On Windows systems, the registry-based certificate stores are automatically consulted if needed to locate intermediate or root certificates in the chain. Chilkat searches certificate stores in the following order. See System Store Locations for more information.
- Current-User "CA" Certificate Store
- Local-Machine "CA" Certificate Store
- Current-User "Root" Certificate Store
- Local-Machine "Root" Certificate Store
- Current-User "MY" Certificate Store
- Local-Machine "MY" Certificate Store
- Current-User "ADDRESSBOOK" Certificate Store (if it exists)
- Local-Machine "ADDRESSBOOK" Certificate Store (if it exists)
Returns NULL on failure
GetEncoded
set status [CkCert_GetEncoded $outStr]
set retStr [CkCert_getEncoded $myCert]
Returns a base64 encoded string representation of the certificate's binary DER format, which can be passed to SetFromEncoded to recreate the certificate object.
Returns 1 for success, 0 for failure.
topGetExtensionAsText
# outStr is a CkString (output)
set status [CkCert_GetExtensionAsText $oid $outStr]
set retStr [CkCert_getExtensionAsText $myCert $oid]
Returns the certificate extension data as a string. This method should only be called for those extensions with text values NOT stored as binary ASN.1. In most cases, applications should call GetExtensionAsXml because most extensions contain ASN.1 values that need to be decoded..
Returns 1 for success, 0 for failure.
GetExtensionAsXml
# outStr is a CkString (output)
set status [CkCert_GetExtensionAsXml $oid $outStr]
set retStr [CkCert_getExtensionAsXml $myCert $oid]
Returns the certificate extension data in XML format (converted from ASN.1). The oid is an OID, such as the ones listed here: http://www.alvestrand.no/objectid/2.5.29.html
Note: In many cases, the data within the XML is returned base64 encoded. An application may need to take one further step to base64 decode the information contained within the XML.
Returns 1 for success, 0 for failure.
GetExtensionBd
# bd is a CkBinData
set status [CkCert_GetExtensionBd $oid $bd]
Returns the certificate extension data specified by oid in bd.
Returns 1 for success, 0 for failure.
GetPrivateKeyPem
set status [CkCert_GetPrivateKeyPem $outStr]
set retStr [CkCert_getPrivateKeyPem $myCert]
Exports the certificate's private key to a PEM string (if the private key is available).
Returns 1 for success, 0 for failure.
topGetPubKeyDer
# bd is a CkBinData
set status [CkCert_GetPubKeyDer $preferPkcs1 $bd]
Loads the bd with the certificate's public key in ASN.1 DER format. If the key type (such as RSA) supports both PKCS1 and PKCS8 formats, then preferPkcs1 selects which format to return.
Returns 1 for success, 0 for failure.
topGetSignature
set status [CkCert_GetSignature $bd]
GetSpkiFingerprint
# encoding is a string
# outStr is a CkString (output)
set status [CkCert_GetSpkiFingerprint $hashAlg $encoding $outStr]
set retStr [CkCert_getSpkiFingerprint $myCert $hashAlg $encoding]
Returns the SPKI Fingerprint suitable for use in pinning. (See RFC 7469.) An SPKI Fingerprint is defined as the output of a known cryptographic hash algorithm whose input is the DER-encoded ASN.1 representation of the Subject Public Key Info (SPKI) of an X.509 certificate. The hashAlg specifies the hash algorithm and may be "sha256", "sha384", "sha512", "sha1", "md2", "md5", "haval", "ripemd128", "ripemd160","ripemd256", or "ripemd320". The encoding specifies the encoding, and may be "base64", "hex", or any of the encoding modes specified in the article at the link below.
Returns 1 for success, 0 for failure.
GetSubjectPart
# outStr is a CkString (output)
set status [CkCert_GetSubjectPart $partNameOrOid $outStr]
set retStr [CkCert_getSubjectPart $myCert $partNameOrOid]
Returns a part of the certificate's subject by name or OID. The partNameOrOid can be a part name, such as "CN", "O", "OU", "E", "S", "L", "C", or "SERIALNUMBER", or it can be an OID such as "2.5.4.3".
Returns 1 for success, 0 for failure.
GetValidFromDt
Returns the date/time this certificate becomes (or became) valid.
Returns NULL on failure
GetValidToDt
Returns the date/time this certificate becomes (or became) invalid.
Returns NULL on failure
HashOf
# hashAlg is a string
# encoding is a string
# outStr is a CkString (output)
set status [CkCert_HashOf $part $hashAlg $encoding $outStr]
set retStr [CkCert_hashOf $myCert $part $hashAlg $encoding]
Returns an encoded hash of a particular part of the certificate. The part may be one of the following:
- IssuerDN
- IssuerPublicKey
- SubjectDN
- SubjectPublicKey
The hashAlg is the name of the hash algorithm, such as "sha1", "sha256", "sha384", "sha512", "md5", etc. The encoding is the format to return, such as "hex", "base64", etc.
Returns 1 for success, 0 for failure.
topHasPrivateKey
Returns 1 if a private key associated with the certificate is available.
topLinkPkcs11
set status [CkCert_LinkPkcs11 $session]
Links to the certificate's private key located on an HSM (smart card, token, or cloud HSM). Once linked, the certificate can be used for signing where the signing occurs on the HSM. See the example below for more detailed information.
Returns 1 for success, 0 for failure.
LoadByCommonName
set status [CkCert_LoadByCommonName $cn]
(Relevant only when running on a Microsoft Windows operating system.) Searches the Windows Local Machine and Current User registry-based certificate stores for a certificate having the common name specified. If found, the certificate is loaded and ready for use.
Returns 1 for success, 0 for failure.
LoadByEmailAddress
set status [CkCert_LoadByEmailAddress $emailAddress]
(Relevant only when running on a Microsoft Windows operating system.) Searches the Windows Local Machine and Current User registry-based certificate stores for a certificate containing the email address specified. If found, the certificate is loaded and ready for use.
Returns 1 for success, 0 for failure.
LoadByIssuerAndSerialNumber
# serialNumber is a string
set status [CkCert_LoadByIssuerAndSerialNumber $issuerCN $serialNumber]
(Relevant only when running on a Microsoft Windows operating system.) Searches the Windows Local Machine and Current User registry-based certificate stores for a certificate matching the issuerCN and having an issuer matching the serialNumber. If found, the certificate is loaded and ready for use.
Note: The hex serial number should be uppercase. Starting in Chilkat v9.5.0.88, the hex serial number is case-insensitive.
Returns 1 for success, 0 for failure.
topLoadBySubjectOid
# value is a string
set status [CkCert_LoadBySubjectOid $oid $value]
(Relevant only when running on a Microsoft Windows operating system.) Searches the Windows Local Machine and Current User registry-based certificate stores for a certificate containing a subject part matching the oid and value.
Returns 1 for success, 0 for failure.
topLoadByThumbprint
# encoding is a string
set status [CkCert_LoadByThumbprint $thumbprint $encoding]
(Relevant only when running on a Microsoft Windows operating system.) Searches the Windows Local Machine and Current User registry-based certificate stores for a certificate having an MD5 or SHA1 thumbprint equal to the thumbprint. The hash (i.e. thumbprint) is passed as a string using the encoding specified by encoding (such as "base64", "hex", etc.).
Returns 1 for success, 0 for failure.
LoadFromBase64
set status [CkCert_LoadFromBase64 $encodedCert]
Loads an ASN.1 or DER encoded certificate represented in a Base64 string.
Returns 1 for success, 0 for failure.
LoadFromBd
set status [CkCert_LoadFromBd $certBytes]
Loads an X.509 certificate from data contained in certBytes.
Note: The certBytes may contain the certificate in any format. It can be binary DER (ASN.1), PEM, Base64, etc. Chilkat will automatically detect the format.
Returns 1 for success, 0 for failure.
LoadFromBinary
Loads an X.509 certificate from ASN.1 DER encoded bytes.
Note: The data may contain the certificate in any format. It can be binary DER (ASN.1), PEM, Base64, etc. Chilkat will automatically detect the format.
Returns 1 for success, 0 for failure.
topLoadFromFile
set status [CkCert_LoadFromFile $path]
Loads a certificate from a .cer, .crt, .p7b, or .pem file. This method accepts certificates from files in any of the following formats:
1. DER encoded binary X.509 (.CER)
2. Base-64 encoded X.509 (.CER)
3. Cryptographic Message Syntax Standard - PKCS #7 Certificates (.P7B)
4. PEM format
This method decodes the certificate based on the contents if finds within the file, and not based on the file extension. If your certificate is in a file having a different extension, try loading it using this method before assuming it won't work. This method does not load .p12 or .pfx (PKCS #12) files.
Returns 1 for success, 0 for failure.
topLoadFromSmartcard
set status [CkCert_LoadFromSmartcard $certSpec]
Important: It's important to set the SmartCardPin property before calling this method.
Loads a certificate and its associated private key (if available) from a connected USB token or smart card. This function works on Windows, Linux, MacOS, iOS, and Alpine Linux. If multiple USB tokens and/or smartcards are connected to the system, then each will be searched and the first matching certificate will be loaded.
The certSpec can have the following formats and values:
- Empty String: Passing the empty string is the most common way to call this function. Pass the empty string when only one HSM (USB token or smart card) is connected to the system, and it contains only one certificate with a private key. The HSM can contain other certificates, but Chilkat will automatically choose and load the certificate that has the associated private key also located on the HSM.
- cn=<cert subject common name>: Finds and loads the certificate having the specified subject common name (CN).
- subjectdn_withtags=<distinguished name with tags>: Finds and loads the certificate having the specified DN with tags. For example, subjectdn_withtags=C=US, O=Example Corporation, OU=IT Department, CN=www.example.com
- subjectdn=<distinguished name without tags>: Finds and loads the certificate having the specified DN without tags. For example, subjectdn=US, California, San Francisco, Example Corp, Engineering, www.example.com, support@example.com
- issuercn=<subject hex serial:issuer common name>: Finds and loads the certificate having the specified hex serial number and an issuer with the specified common name. For example, "01020304: Let's Encrypt Authority X1"
- serial=<hex serial number>: Finds and loads the certificate having the specified hexidecimal serial number.
- thumbprint=<hex SHA1 thumbprint>: Finds and loads the certificate having the specified hexidecimal SHA1 thumbprint.
- policyoid=<certificate policy OID>: Finds and loads the certificate having a policy OID equal to the specified value, such as 2.16.840.1.101.2.1.11.39.
- o=<subject organization>: Finds and loads the certificate having the "O" subject part equal to the specified value.
- c=<subject country>: Finds and loads the certificate having the "C" subject part equal to the specified value.
- l=<subject locality>: Finds and loads the certificate having the "L" subject part equal to the specified value.
- ou=<subject organizational unit>: Finds and loads the certificate having the "OU" subject part equal to the specified value.
- st=<subject state>: Finds and loads the certificate having the "ST" subject part equal to the specified value.
- e=<subject email>: Finds and loads the certificate having the "E" subject part equal to the specified value.
On Windows systems, certSpec can specify a CSP (Cryptographic Service Provider) name, such as "YubiHSM Key Storage Provider." This option is retained for legacy support, as Chilkat initially handled USB tokens and smartcards only on Windows via CSPs. Chilkat now supports HSMs across multiple platforms (Windows, Linux, macOS, iOS, Alpine Linux) and uses various methods to communicate with HSMs, including PKCS11, macOS Keychain services, Windows ScMinidriver, MsCNG, and legacy Windows CryptoAPI. Chilkat automatically detects the HSM make/model and selects the optimal communication method.
Some possible CSP values are:
- Microsoft Smart Card Key Storage Provider
- Microsoft Base Smart Card Crypto Provider
- Bit4id Universal Middleware Provider
- YubiHSM Key Storage Provider (starting in v9.5.0.83)
- SafeSign Standard Cryptographic Service Provider
- SafeSign Standard RSA and AES Cryptographic Service Provider
- eToken Base Cryptographic Provider
- cryptoCertum3 CSP
- FTSafe ePass1000 RSA Cryptographic Service Provider
- SecureStoreCSP
- EnterSafe ePass2003 CSP v2.0
- Gemalto Classic Card CSP
- PROXKey CSP India V1.0
- PROXKey CSP India V2.0
- TRUST KEY CSP V1.0
- Watchdata Brazil CSP V1.0
- Luna Cryptographic Services for Microsoft Windows
- Luna SChannel Cryptographic Services for Microsoft Windows
- Safenet RSA Full Cryptographic Provider
- nCipher Enhanced Cryptographic Provider
- MySmartLogon NFC CSP
- NFC Connector Enterprise
- ActivClient Cryptographic Service Provider
- EnterSafe ePass2003 CSP v1.0
- Oberthur Card Systems Cryptographic Provider
- Athena ASECard Crypto CSP
- many others...
Returns 1 for success, 0 for failure.
LoadPem
set status [CkCert_LoadPem $strPem]
Loads the certificate from a PEM string.
Returns 1 for success, 0 for failure.
LoadPfxBd
# password is a string
set status [CkCert_LoadPfxBd $pfxData $password]
Loads the certificate from the PFX contained in pfxData. Note: If the PFX contains multiple certificates, the 1st certificate in the PFX is loaded.
Returns 1 for success, 0 for failure.
topLoadPfxData
Loads a PFX from an in-memory image of a PFX file. Note: If the PFX contains multiple certificates, the 1st certificate in the PFX is loaded.
Returns 1 for success, 0 for failure.
topLoadPfxFile
# password is a string
set status [CkCert_LoadPfxFile $pfxPath $password]
Loads a PFX file. Note: If the PFX contains multiple certificates, the 1st certificate in the PFX is loaded.
Returns 1 for success, 0 for failure.
topLoadTaskResult
set status [CkCert_LoadTaskResult $task]
PemFileToDerFile
# toPath is a string
set status [CkCert_PemFileToDerFile $fromPath $toPath]
SaveToFile
set status [CkCert_SaveToFile $path]
SetCloudSigner
set status [CkCert_SetCloudSigner $json]
Provides information for a cloud signing service to do the signing via a remote signing server. Current supported services are AWS KMS, Azure Key Vault, and ARSS (Aruba Remote Signing Service). See the examples below.
Returns 1 for success, 0 for failure.
SetCloudSignerAsync (1)
# json is a CkJsonObject
set ret_task [CkCert_SetCloudSignerAsync $json]
Creates an asynchronous task to call the SetCloudSigner method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)
Returns NULL on failure
topSetFromEncoded
set status [CkCert_SetFromEncoded $encodedCert]
Initializes the certificate object from a base64 encoded string representation of the certificate's binary DER format.
Returns 1 for success, 0 for failure.
topSetPrivateKey
set status [CkCert_SetPrivateKey $privKey]
Used to associate a private key with the certificate for subsequent (PKCS7) signature creation or decryption.
Returns 1 for success, 0 for failure.
SetPrivateKeyPem
set status [CkCert_SetPrivateKeyPem $privKeyPem]
Same as SetPrivateKey, but the key is provided in unencrypted PEM format. (Note: The privKeyPem is not a file path, it is the actual PEM text.)
Returns 1 for success, 0 for failure.
UploadToCloud
# jsonOut is a CkJsonObject
set status [CkCert_UploadToCloud $jsonIn $jsonOut]
This is an open-ended method to accomodate uploading the private key to a cloud service, such as AWS KMS, or Azure Key Vault. For details, see the examples below.
Returns 1 for success, 0 for failure.
UploadToCloudAsync (1)
# jsonIn is a CkJsonObject
# jsonOut is a CkJsonObject
set ret_task [CkCert_UploadToCloudAsync $jsonIn $jsonOut]
Creates an asynchronous task to call the UploadToCloud method with the arguments provided. (Async methods are available starting in Chilkat v9.5.0.52.)
Returns NULL on failure
topUseCertVault
set status [CkCert_UseCertVault $vault]
Adds an XML certificate vault to the object's internal list of sources to be searched for certificates for help in building certificate chains and verifying the certificate signature to the trusted root.
Returns 1 for success, 0 for failure.
VerifySignature
Verifies the certificate signature, as well as the signatures of all certificates in the chain of authentication to the trusted root. Returns 1 if all signatures are verified to the trusted root. Otherwise returns 0.
topX509PKIPathv1
set status [CkCert_X509PKIPathv1 $outStr]
set retStr [CkCert_x509PKIPathv1 $myCert]
Returns the base64 representation of an X509PKIPathv1 containing just the calling certificate. This is typically used in an X.509 Binary Security Token. It is a PKIPath that contains an ordered list of X.509 public certificates packaged in a PKIPath. The X509PKIPathv1 token type may be used to represent a certificate path. (This is sometimes used in XAdES signatures.)
Returns 1 for success, 0 for failure.