PrivateKey Unicode C Reference Documentation

PrivateKey

Current Version: 10.0.0

Contains an RSA, DSA, or ECC private key. Provides methods for importing and exporting to/from PEM, DER, PKCS8, PKCS1, PVK, and XML formats. Private keys can be imported/exported to both memory and files.

Create/Dispose

HCkPrivateKeyW instance = CkPrivateKeyW_Create();
// ...
CkPrivateKeyW_Dispose(instance);
HCkPrivateKeyW CkPrivateKeyW_Create(void);

Creates an instance of the HCkPrivateKeyW object and returns a handle ("void *" pointer). The handle is passed in the 1st argument for the functions listed on this page.

void CkPrivateKeyW_Dispose(HCkPrivateKeyW handle);

Objects created by calling CkPrivateKeyW_Create must be freed by calling this method. A memory leak occurs if a handle is not disposed by calling this function. Also, any handle returned by a Chilkat "C" function must also be freed by the application by calling the appropriate Dispose method, such as CkPrivateKeyW_Dispose.

Callback Functions

Callback Functions introduced in Chilkat v9.5.0.56
void CkPrivateKeyW_setAbortCheck(HCkPrivateKeyW cHandle, BOOL (*fnAbortCheck)(void));

Provides the opportunity for a method call to be aborted. If TRUE is returned, the operation in progress is aborted. Return FALSE to allow the current method call to continue. This callback function is called periodically based on the value of the HeartbeatMs property. (If HeartbeatMs is 0, then no callbacks are made.) As an example, to make 5 AbortCheck callbacks per second, set the HeartbeatMs property equal to 200.

void CkPrivateKeyW_setPercentDone(HCkPrivateKeyW cHandle, BOOL (*fnPercentDone)(int pctDone));

Provides the percentage completed for any method that involves network communications or time-consuming processing (assuming it is a method where a percentage completion can be measured). This callback is only called when it is possible to know a percentage completion, and when it makes sense to express the operation as a percentage completed. The pctDone argument will have a value from 1 to 100. For methods that complete very quickly, the number of PercentDone callbacks will vary, but the final callback should have a value of 100. For long running operations, no more than one callback per percentage point will occur (for example: 1, 2, 3, ... 98, 99, 100).

This callback counts as an AbortCheck callback, and takes the place of the AbortCheck event when it fires.

The return value indicates whether the method call should be aborted, or whether it should proceed. Return TRUE to abort, and FALSE to proceed.

void CkPrivateKeyW_setProgressInfo(HCkPrivateKeyW cHandle, void (*fnProgressInfo)(const wchar_t *name, const wchar_t *value));

This is a general callback that provides name/value information about what is happening at certain points during a method call. To see the information provided in ProgressInfo callbacks, if any, write code to handle this event and log the name/value pairs. Most are self-explanatory.

void CkPrivateKeyW_setTaskCompleted(HCkPrivateKeyW cHandle, void (*fnTaskCompleted)(HCkTaskW hTask));

Called in the background thread when an asynchronous task completes. (Note: When an async method is running, all callbacks are in the background thread.)

Properties

BitLength
int CkPrivateKeyW_getBitLength(HCkPrivateKeyW cHandle);
Introduced in version 9.5.0.49

The bit length (strength) of the private key.

top
DebugLogFilePath
void CkPrivateKeyW_getDebugLogFilePath(HCkPrivateKeyW cHandle, HCkString retval);
void CkPrivateKeyW_putDebugLogFilePath(HCkPrivateKeyW cHandle, const wchar_t *newVal);
const wchar_t *CkPrivateKeyW_debugLogFilePath(HCkPrivateKeyW cHandle);

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:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

More Information and Examples
Example showing how to use DebugLogFilePath.
top
KeyType
void CkPrivateKeyW_getKeyType(HCkPrivateKeyW cHandle, HCkString retval);
const wchar_t *CkPrivateKeyW_keyType(HCkPrivateKeyW cHandle);
Introduced in version 9.5.0.52

The type of private key. Can be "empty", "rsa", "dsa", "ecc" (i.e. ECDSA), or "ed25519".

top
LastErrorHtml
void CkPrivateKeyW_getLastErrorHtml(HCkPrivateKeyW cHandle, HCkString retval);
const wchar_t *CkPrivateKeyW_lastErrorHtml(HCkPrivateKeyW cHandle);

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.

top
LastErrorText
void CkPrivateKeyW_getLastErrorText(HCkPrivateKeyW cHandle, HCkString retval);
const wchar_t *CkPrivateKeyW_lastErrorText(HCkPrivateKeyW cHandle);

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.

More Information and Examples
Concept of LastErrorTextLastErrorText Standard Information
top
LastErrorXml
void CkPrivateKeyW_getLastErrorXml(HCkPrivateKeyW cHandle, HCkString retval);
const wchar_t *CkPrivateKeyW_lastErrorXml(HCkPrivateKeyW cHandle);

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.

top
LastMethodSuccess
BOOL CkPrivateKeyW_getLastMethodSuccess(HCkPrivateKeyW cHandle);
void CkPrivateKeyW_putLastMethodSuccess(HCkPrivateKeyW cHandle, BOOL newVal);

Indicate whether the last method call succeeded or failed. A value of TRUE indicates success, a value of FALSE 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 = TRUE and failure = FALSE.
  • 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 TRUE. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

top
Pkcs8EncryptAlg
void CkPrivateKeyW_getPkcs8EncryptAlg(HCkPrivateKeyW cHandle, HCkString retval);
void CkPrivateKeyW_putPkcs8EncryptAlg(HCkPrivateKeyW cHandle, const wchar_t *newVal);
const wchar_t *CkPrivateKeyW_pkcs8EncryptAlg(HCkPrivateKeyW cHandle);
Introduced in version 9.5.0.49

The encryption algorithm to be used when exporting the key to encrypted PKCS8. The default value is "3des". Possible choices also include "aes128", "aes192", and "aes256". All of the encryption algorithm choices use CBC mode.

top
UncommonOptions
void CkPrivateKeyW_getUncommonOptions(HCkPrivateKeyW cHandle, HCkString retval);
void CkPrivateKeyW_putUncommonOptions(HCkPrivateKeyW cHandle, const wchar_t *newVal);
const wchar_t *CkPrivateKeyW_uncommonOptions(HCkPrivateKeyW cHandle);
Introduced in version 9.5.0.96

This is a catch-all property to be used for uncommon needs. This property defaults to the empty string, and should typically remain empty.

top
VerboseLogging
BOOL CkPrivateKeyW_getVerboseLogging(HCkPrivateKeyW cHandle);
void CkPrivateKeyW_putVerboseLogging(HCkPrivateKeyW cHandle, BOOL newVal);

If set to TRUE, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is FALSE. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

top
Version
void CkPrivateKeyW_getVersion(HCkPrivateKeyW cHandle, HCkString retval);
const wchar_t *CkPrivateKeyW_version(HCkPrivateKeyW cHandle);

Version of the component/library, such as "9.5.0.94"

More Information and Examples
How to get the Chilkat version at runtime.
top

Methods

GetJwk
BOOL CkPrivateKeyW_GetJwk(HCkPrivateKeyW cHandle, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getJwk(HCkPrivateKeyW cHandle);
Introduced in version 9.5.0.66

Gets the private key in JWK (JSON Web Key) format.

RSA keys have this JWK format: 

         {"kty":"RSA",
          "n":"0vx7agoebGcQ ... JzKnqDKgw",
          "e":"AQAB",
          "d":"X4cTteJY_gn4F ... 4jfcKoAC8Q",
          "p":"83i-7IvMGXoMX ... vn7O0nVbfs",
          "q":"3dfOR9cuYq-0S ... 4vIcb6yelxk",
          "dp":"G4sPXkc6Ya9 ... 8YeiKkTiBj0",
          "dq":"s9lAH9fggBso ... w494Q_cgk",
          "qi":"GyM_p6JrXySi ... zTKhAVRU"}

ECC keys have this JWK format. 

         {"kty":"EC",
          "crv":"P-256",
          "x":"MKBCTNIcKUSDii11ySs3526iDZ8AiTo7Tu6KPAqv7D4",
          "y":"4Etl6SRW2YiLUrN5vfvVHuhp7x8PxltmWWlbbM4IFyM",
          "d":"870MB6gfuTJ4HtUnUvYMyJpr5eUZNP4Bk43bVdj3eAE"}

Ed25519 keys (added in v9.5.0.83) have this JWK format. 

         {"kty": "OKP",
         "crv": "Ed25519",
         "x": "SE2Kne5xt51z1eciMH2T2ftDQp96Gl6FhY6zSQujiP0",
         "d": "O-eRXewadF0sNyB0U9omcnt8Qg2ZmeK3WSXPYgqe570",
         "use": "sig"}

Returns TRUE for success, FALSE for failure.

More Information and Examples
Get RSA Private Key in JWK Format (JSON Web Key)Get ECC Private Key in JWK Format (JSON Web Key)
top
GetJwkThumbprint
BOOL CkPrivateKeyW_GetJwkThumbprint(HCkPrivateKeyW cHandle, const wchar_t *hashAlg, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getJwkThumbprint(HCkPrivateKeyW cHandle, const wchar_t *hashAlg);
Introduced in version 9.5.0.66

Returns the JWK thumbprint for the private key. This is the thumbprint of the JSON Web Key (JWK) as per RFC 7638.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Compute JWK Thumbprint for RSA and EC Private Keys
top
GetPkcs1
BOOL CkPrivateKeyW_GetPkcs1(HCkPrivateKeyW cHandle, const unsigned char * outBytes);
Introduced in version 9.5.0.58

Gets the private key in unencrypted binary DER format, preferring PKCS1 if possible.

RSA keys are returned in PKCS1 ASN.1 DER format: 

RSAPrivateKey ::= SEQUENCE {
    version           Version,
    modulus           INTEGER,  -- n
    publicExponent    INTEGER,  -- e
    privateExponent   INTEGER,  -- d
    prime1            INTEGER,  -- p
    prime2            INTEGER,  -- q
    exponent1         INTEGER,  -- d mod (p-1)
    exponent2         INTEGER,  -- d mod (q-1)
    coefficient       INTEGER,  -- (inverse of q) mod p
    otherPrimeInfos   OtherPrimeInfos OPTIONAL
}

DSA keys are returned in this ASN.1 DER format: 

SEQUENCE(6 elem)
    INTEGER 0
    INTEGER(2048 bit) (p) 
    INTEGER(160 bit) (q) 
    INTEGER(2044 bit) (g) 
    INTEGER(2040 bit) (y - public key) 
    INTEGER(156 bit) (x - private key)

ECC keys are returned in this ASN.1 DER format: 

(from RFC 5915)
ECPrivateKey ::= SEQUENCE {
    version        INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
    privateKey     OCTET STRING,
    parameters [0] ECParameters {{ NamedCurve }} OPTIONAL,
    publicKey  [1] BIT STRING OPTIONAL (This is the ANSI X9.63 public key format.)

Returns TRUE for success, FALSE for failure.

top
GetPkcs1ENC
BOOL CkPrivateKeyW_GetPkcs1ENC(HCkPrivateKeyW cHandle, const wchar_t *encoding, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getPkcs1ENC(HCkPrivateKeyW cHandle, const wchar_t *encoding);
Introduced in version 9.5.0.52

Gets the private key in unencrypted binary DER format, preferring PKCS1 if possible, and returns in an encoded string, as specified by the encoding argument.

RSA keys are returned in PKCS1 ASN.1 DER format: 

RSAPrivateKey ::= SEQUENCE {
    version           Version,
    modulus           INTEGER,  -- n
    publicExponent    INTEGER,  -- e
    privateExponent   INTEGER,  -- d
    prime1            INTEGER,  -- p
    prime2            INTEGER,  -- q
    exponent1         INTEGER,  -- d mod (p-1)
    exponent2         INTEGER,  -- d mod (q-1)
    coefficient       INTEGER,  -- (inverse of q) mod p
    otherPrimeInfos   OtherPrimeInfos OPTIONAL
}

DSA keys are returned in this ASN.1 DER format: 

SEQUENCE(6 elem)
    INTEGER 0
    INTEGER(2048 bit) (p) 
    INTEGER(160 bit) (q) 
    INTEGER(2044 bit) (g) 
    INTEGER(2040 bit) (y - public key) 
    INTEGER(156 bit) (x - private key)

ECC keys are returned in this ASN.1 DER format: 

(from RFC 5915)
ECPrivateKey ::= SEQUENCE {
    version        INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
    privateKey     OCTET STRING,
    parameters [0] ECParameters {{ NamedCurve }} OPTIONAL,
    publicKey  [1] BIT STRING OPTIONAL (This is the ANSI X9.63 public key format.)

Returns TRUE for success, FALSE for failure.

More Information and Examples
Supported Binary Encodings
top
GetPkcs1Pem
BOOL CkPrivateKeyW_GetPkcs1Pem(HCkPrivateKeyW cHandle, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getPkcs1Pem(HCkPrivateKeyW cHandle);
Introduced in version 9.5.0.58

Gets the private key in non-encrypted PEM format, preferring PKCS1 over PKCS8 if possible for the key type.

Returns TRUE for success, FALSE for failure.

top
GetPkcs8
BOOL CkPrivateKeyW_GetPkcs8(HCkPrivateKeyW cHandle, const unsigned char * outData);

Gets the private key in unencrypted PKCS8 format.

RSA keys are returned in PKCS8 ASN.1 DER format: 

SEQUENCE                  // PrivateKeyInfo
+- INTEGER                // Version - 0 (v1998)
+- SEQUENCE               // AlgorithmIdentifier
   +- OID                 // 1.2.840.113549.1.1.1
   +- NULL                // Optional Parameters
+- OCTETSTRING            // PrivateKey
   +- SEQUENCE            // RSAPrivateKey
      +- INTEGER(0)       // Version - v1998(0)
      +- INTEGER(N)       // N
      +- INTEGER(E)       // E
      +- INTEGER(D)       // D
      +- INTEGER(P)       // P
      +- INTEGER(Q)       // Q
      +- INTEGER(DP)      // d mod p-1
      +- INTEGER(DQ)      // d mod q-1
      +- INTEGER(Inv Q)   // INV(q) mod p

DSA keys are returned in this ASN.1 DER format: 

SEQUENCE                 // PrivateKeyInfo
+- INTEGER                 // Version
+- SEQUENCE              // AlgorithmIdentifier
    +- OID                       // 1.2.840.10040.4.1
    +- SEQUENCE           // DSS-Params (Optional Parameters)
	+- INTEGER(P)      // P
	+- INTEGER(Q)      // Q
	+- INTEGER(G)      // G
    +- OCTETSTRING             // PrivateKey
	+- INTEGER(X)      // DSAPrivateKey X

ECC keys are returned in this ASN.1 DER format: 

(from RFC 5915)
ECPrivateKey ::= SEQUENCE {
    version        INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
    privateKey     OCTET STRING,
    parameters [0] ECParameters {{ NamedCurve }} OPTIONAL,
    publicKey  [1] BIT STRING OPTIONAL (This is the ANSI X9.63 public key format.)

Returns TRUE for success, FALSE for failure.

top
GetPkcs8ENC
BOOL CkPrivateKeyW_GetPkcs8ENC(HCkPrivateKeyW cHandle, const wchar_t *encoding, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getPkcs8ENC(HCkPrivateKeyW cHandle, const wchar_t *encoding);
Introduced in version 9.5.0.52

Gets the private key in unencrypted PKCS8 format and returned in an encoded string, as specified by the encoding argument.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Supported Binary EncodingsGenerate RSA Key and return Base64 PKCS8 Private Key
top
GetPkcs8Encrypted
BOOL CkPrivateKeyW_GetPkcs8Encrypted(HCkPrivateKeyW cHandle, const wchar_t *password, const unsigned char * outBytes);

Writes the private key to password-protected PKCS8 format. The Pkcs8EncryptAlg property controls the encryption algorithm used to encrypt.

Returns TRUE for success, FALSE for failure.

top
GetPkcs8EncryptedENC
BOOL CkPrivateKeyW_GetPkcs8EncryptedENC(HCkPrivateKeyW cHandle, const wchar_t *encoding, const wchar_t *password, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getPkcs8EncryptedENC(HCkPrivateKeyW cHandle, const wchar_t *encoding, const wchar_t *password);
Introduced in version 9.5.0.52

Writes the private key to password-protected PKCS8 format and returns as an encoded string as specified by the encoding argument. The Pkcs8EncryptAlg property controls the encryption algorithm used to encrypt.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Supported Binary Encodings
top
GetPkcs8EncryptedPem
BOOL CkPrivateKeyW_GetPkcs8EncryptedPem(HCkPrivateKeyW cHandle, const wchar_t *password, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getPkcs8EncryptedPem(HCkPrivateKeyW cHandle, const wchar_t *password);

Writes the private key to password-protected PKCS8 PEM format. The Pkcs8EncryptAlg property controls the encryption algorithm used to encrypt.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Generate RSA Key and Export to Encrypted PEM
top
GetPkcs8Pem
BOOL CkPrivateKeyW_GetPkcs8Pem(HCkPrivateKeyW cHandle, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getPkcs8Pem(HCkPrivateKeyW cHandle);

Gets the private key in PKCS8 PEM format.

Returns TRUE for success, FALSE for failure.

top
GetPublicKey
HCkPublicKeyW CkPrivateKeyW_GetPublicKey(HCkPrivateKeyW cHandle);
Introduced in version 9.5.0.52

Returns the public key portion of the private key as a public key object.

Returns NULL on failure

More Information and Examples
Convert RSA Private Key to Public KeyGet ECC Public Key from ECC Private Key
top
GetRawHex
BOOL CkPrivateKeyW_GetRawHex(HCkPrivateKeyW cHandle, HCkStringBuilderW pubKey, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getRawHex(HCkPrivateKeyW cHandle, HCkStringBuilderW pubKey);
Introduced in version 9.5.0.83

Returns the private key in raw hex format (lowercase). The public key is written to pubKey.

Ed25519 private and public keys are 32-byte each (64 chars in hex format).

The length of an EC key depends on the curve. The private key is a single hex string. The public key is a hex string composed of the "x" and "y" parts of the public key like this: 

    04||HEX(x)||HEX(y)

Note: This method is only applicable to Ed25519 and ECDSA keys. An RSA key cannot be returned in such as simple raw format because it is composed of multiple parts (modulus, exponent, and more).

Returns TRUE for success, FALSE for failure.

More Information and Examples
Get an EC Key in Raw Hex FormatGet an Ed25519 Key in Raw Hex Format
top
GetXml
BOOL CkPrivateKeyW_GetXml(HCkPrivateKeyW cHandle, const wchar_t *outStr);
const wchar_t *CkPrivateKeyW_getXml(HCkPrivateKeyW cHandle);

Returns the private key in XML format. The private key is returned unencrypted and the parts are base64 encoded.

RSA keys have this XML format: 

<RSAKeyValue>
  <Modulus>...</Modulus>
  <Exponent>...</Exponent>
  <P>...</P>
  <Q>...</Q>
  <DP>...</DP>
  <DQ>...</DQ>
  <InverseQ>...</InverseQ>
  <D>...</D>
</RSAKeyValue>

DSA keys have this XML format: 

<DSAKeyValue>
	<P>...</P>
	<Q>...</Q>
	<G>...</G>
	<Y>...</Y>
	<X>...</X>
</DSAKeyValue>

ECC keys have this XML format. The CURVE_NAME could be one of secp256r1, secp384r1, secp521r1, secp256k1 (or others as new curves are supported.) 

<ECCKeyValue curve="CURVE_NAME">...</ECCKeyValue>

Returns TRUE for success, FALSE for failure.

More Information and Examples
Get RSA Key Modulus from .cer or .key
top
LoadAnyFormat
BOOL CkPrivateKeyW_LoadAnyFormat(HCkPrivateKeyW cHandle, HCkBinDataW privKeyData, const wchar_t *password);
Introduced in version 9.5.0.75

Loads a private key from any format (PKCS1, PKCS8, PEM, JWK, PVK, etc.). The contents of the key (binary or text) is passed in privKeyData. The password is optional and should be specified if needed.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Use HTTPS Client Certificate from .cer and .key Files
top
LoadAnyFormatFile
BOOL CkPrivateKeyW_LoadAnyFormatFile(HCkPrivateKeyW cHandle, const wchar_t *path, const wchar_t *password);
Introduced in version 9.5.0.83

Loads a private key from a file in any format (PKCS1, PKCS8, PEM, JWK, PVK, etc.). The password is optional and should be specified if needed.

Returns TRUE for success, FALSE for failure.

top
LoadEd25519
BOOL CkPrivateKeyW_LoadEd25519(HCkPrivateKeyW cHandle, const wchar_t *privKey, const wchar_t *pubKey);
Introduced in version 9.5.0.83

Loads the private key object with an ed25519 key pair. The privKey is the 32-byte private key as a hex string. The pubKey is the 32-byte public key as a hex string. pubKey may be an empty string, in which case the public key is automatically computed from the private key.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Load an Ed25519 Private Key from Hex
top
LoadEncryptedPem
BOOL CkPrivateKeyW_LoadEncryptedPem(HCkPrivateKeyW cHandle, const wchar_t *pemStr, const wchar_t *password);

Loads the private key from an in-memory encrypted PEM string. An encrypted PEM contains the private key in encrypted PKCS#8 format, where the data begins and ends with the following tags: 

-----BEGIN ENCRYPTED PRIVATE KEY-----
BASE64 ENCODED DATA
-----END ENCRYPTED PRIVATE KEY-----

For those requiring a deeper understanding: The base64 data contains ASN.1 DER with the following structure: 

EncryptedPrivateKeyInfo ::= SEQUENCE {
  encryptionAlgorithm  EncryptionAlgorithmIdentifier,
  encryptedData        EncryptedData
}

EncryptionAlgorithmIdentifier ::= AlgorithmIdentifier

EncryptedData ::= OCTET STRING

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Compute JWK Thumbprint for RSA and EC Private Keys
top
LoadEncryptedPemFile
BOOL CkPrivateKeyW_LoadEncryptedPemFile(HCkPrivateKeyW cHandle, const wchar_t *path, const wchar_t *password);

Loads a private key from an encrypted PEM file.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Duplicate OpenSSL smime Command
top
LoadJwk
BOOL CkPrivateKeyW_LoadJwk(HCkPrivateKeyW cHandle, const wchar_t *jsonStr);
Introduced in version 9.5.0.66

Loads a private key from an JWK (JSON Web Key) string.

RSA keys have this JWK format: 

         {"kty":"RSA",
          "n":"0vx7agoebGcQ ... JzKnqDKgw",
          "e":"AQAB",
          "d":"X4cTteJY_gn4F ... 4jfcKoAC8Q",
          "p":"83i-7IvMGXoMX ... vn7O0nVbfs",
          "q":"3dfOR9cuYq-0S ... 4vIcb6yelxk",
          "dp":"G4sPXkc6Ya9 ... 8YeiKkTiBj0",
          "dq":"s9lAH9fggBso ... w494Q_cgk",
          "qi":"GyM_p6JrXySi ... zTKhAVRU"}

ECC keys have this JWK format. 

         {"kty":"EC",
          "crv":"P-256",
          "x":"MKBCTNIcKUSDii11ySs3526iDZ8AiTo7Tu6KPAqv7D4",
          "y":"4Etl6SRW2YiLUrN5vfvVHuhp7x8PxltmWWlbbM4IFyM",
          "d":"870MB6gfuTJ4HtUnUvYMyJpr5eUZNP4Bk43bVdj3eAE"}

Ed25519 keys (added in v9.5.0.83) have this JWK format. 

         {"kty": "OKP",
         "crv": "Ed25519",
         "x": "SE2Kne5xt51z1eciMH2T2ftDQp96Gl6FhY6zSQujiP0",
         "d": "O-eRXewadF0sNyB0U9omcnt8Qg2ZmeK3WSXPYgqe570",
         "use": "sig"}

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Load RSA Private Key from JWK Format (JSON Web Key)Load ECC Private Key from JWK Format (JSON Web Key)JWE using RSAES-OAEP and AES GCM
top
LoadPem
BOOL CkPrivateKeyW_LoadPem(HCkPrivateKeyW cHandle, const wchar_t *str);

Loads the private key from an in-memory PEM string. If the PEM contains an encrypted private key, then the LoadEncryptedPem method should instead be called. This method is for loading an unencrypted private key stored in PEM using PKCS#1 or PKCS#8.

A private key stored in PKCS#1 format begins and ends with the tags: 

-----BEGIN RSA PRIVATE KEY-----
BASE64 ENCODED DATA
-----END RSA PRIVATE KEY-----

For those requiring a deeper understanding, the PKCS1 base64 contains ASN.1 in DER encoding with the following structure: 

RSAPrivateKey ::= SEQUENCE {
  version           Version,
  modulus           INTEGER,  -- n
  publicExponent    INTEGER,  -- e
  privateExponent   INTEGER,  -- d
  prime1            INTEGER,  -- p
  prime2            INTEGER,  -- q
  exponent1         INTEGER,  -- d mod (p-1)
  exponent2         INTEGER,  -- d mod (q-1)
  coefficient       INTEGER,  -- (inverse of q) mod p
  otherPrimeInfos   OtherPrimeInfos OPTIONAL
}

A private key stored in PKCS#8 format begins and ends with the tags: 

-----BEGIN PRIVATE KEY-----
BASE64 ENCODED DATA
-----END PRIVATE KEY-----

For those requiring a deeper understanding, the PKCS8 base64 contains ASN.1 in DER encoding with the following structure: 

PrivateKeyInfo ::= SEQUENCE {
  version         Version,
  algorithm       AlgorithmIdentifier,
  PrivateKey      BIT STRING
}

AlgorithmIdentifier ::= SEQUENCE {
  algorithm       OBJECT IDENTIFIER,
  parameters      ANY DEFINED BY algorithm OPTIONAL
}

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Compute JWK Thumbprint for RSA and EC Private Keys
top
LoadPemFile
BOOL CkPrivateKeyW_LoadPemFile(HCkPrivateKeyW cHandle, const wchar_t *path);

Loads a private key from a PEM file.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Create PKCS1 RSA Signature with PEM Private Key
top
LoadPkcs1
BOOL CkPrivateKeyW_LoadPkcs1(HCkPrivateKeyW cHandle, HCkByteData data);
Introduced in version 9.5.0.58

Loads an RSA, ECC, or DSA private key from binary DER.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
LoadPkcs1File
BOOL CkPrivateKeyW_LoadPkcs1File(HCkPrivateKeyW cHandle, const wchar_t *path);
Introduced in version 9.5.0.58

Loads a private key from a PKCS1 file.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
LoadPkcs8
BOOL CkPrivateKeyW_LoadPkcs8(HCkPrivateKeyW cHandle, HCkByteData data);

Loads a private key from in-memory PKCS8 byte data.

For those requiring a deeper understanding, the PKCS8 contains ASN.1 in DER encoding with the following structure: 

PrivateKeyInfo ::= SEQUENCE {
  version         Version,
  algorithm       AlgorithmIdentifier,
  PrivateKey      BIT STRING
}

AlgorithmIdentifier ::= SEQUENCE {
  algorithm       OBJECT IDENTIFIER,
  parameters      ANY DEFINED BY algorithm OPTIONAL
}

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
LoadPkcs8Encrypted
BOOL CkPrivateKeyW_LoadPkcs8Encrypted(HCkPrivateKeyW cHandle, HCkByteData data, const wchar_t *password);

Loads a private key from in-memory password-protected PKCS8 byte data.

For those requiring a deeper understanding, the encrypted PKCS8 contains ASN.1 in DER encoding with the following structure: 

EncryptedPrivateKeyInfo ::= SEQUENCE {
  encryptionAlgorithm  EncryptionAlgorithmIdentifier,
  encryptedData        EncryptedData
}

EncryptionAlgorithmIdentifier ::= AlgorithmIdentifier

EncryptedData ::= OCTET STRING

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
LoadPkcs8EncryptedFile
BOOL CkPrivateKeyW_LoadPkcs8EncryptedFile(HCkPrivateKeyW cHandle, const wchar_t *path, const wchar_t *password);

Loads a private key from an encrypted PKCS8 file.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

More Information and Examples
RSA Sign with PKCS8 Encrypted Key
top
LoadPkcs8File
BOOL CkPrivateKeyW_LoadPkcs8File(HCkPrivateKeyW cHandle, const wchar_t *path);

Loads a private key from a PKCS8 file.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
LoadPvk
BOOL CkPrivateKeyW_LoadPvk(HCkPrivateKeyW cHandle, HCkByteData data, const wchar_t *password);

Loads a private key from in-memory PVK byte data.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
LoadPvkFile
BOOL CkPrivateKeyW_LoadPvkFile(HCkPrivateKeyW cHandle, const wchar_t *path, const wchar_t *password);

Loads a private key from a PVK format file.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Load Certificate (.cer) and Private Key (.pvk) generated from makecert
top
LoadXml
BOOL CkPrivateKeyW_LoadXml(HCkPrivateKeyW cHandle, const wchar_t *xml);

Loads a private key from an XML string.

RSA keys have this XML format: 

<RSAKeyValue>
  <Modulus>...</Modulus>
  <Exponent>...</Exponent>
  <P>...</P>
  <Q>...</Q>
  <DP>...</DP>
  <DQ>...</DQ>
  <InverseQ>...</InverseQ>
  <D>...</D>
</RSAKeyValue>

DSA keys have this XML format: 

<DSAKeyValue>
	<P>...</P>
	<Q>...</Q>
	<G>...</G>
	<Y>...</Y>
	<X>...</X>
</DSAKeyValue>

ECC keys have this XML format. The CURVE_NAME could be one of secp256r1, secp384r1, secp521r1, secp256k1 (or others as new curves are supported.) 

<ECCKeyValue curve="CURVE_NAME">...</ECCKeyValue>

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
LoadXmlFile
BOOL CkPrivateKeyW_LoadXmlFile(HCkPrivateKeyW cHandle, const wchar_t *path);

Loads a private key from an XML file.

Note: Each of the private key Load* methods willl auto-recognize the content and will parse appropriately. The private key should be successfully loaded even when the wrong format data is passed to the wrong method.

Returns TRUE for success, FALSE for failure.

top
SavePemFile
BOOL CkPrivateKeyW_SavePemFile(HCkPrivateKeyW cHandle, const wchar_t *path);
Introduced in version 9.5.0.58

Saves the private key to an unencrypted PKCS1 PEM format file.

Returns TRUE for success, FALSE for failure.

top
SavePkcs1File
BOOL CkPrivateKeyW_SavePkcs1File(HCkPrivateKeyW cHandle, const wchar_t *path);
Introduced in version 9.5.0.58

Saves the private key to an unencrypted binary PKCS1 format file.

Returns TRUE for success, FALSE for failure.

top
SavePkcs8EncryptedFile
BOOL CkPrivateKeyW_SavePkcs8EncryptedFile(HCkPrivateKeyW cHandle, const wchar_t *password, const wchar_t *path);

Saves the private key to a password-protected PKCS8 format file. The Pkcs8EncryptAlg property controls the encryption algorithm used to encrypt.

Returns TRUE for success, FALSE for failure.

top
SavePkcs8EncryptedPemFile
BOOL CkPrivateKeyW_SavePkcs8EncryptedPemFile(HCkPrivateKeyW cHandle, const wchar_t *password, const wchar_t *path);

Saves the private key to a password-protected PKCS8 PEM format file. The Pkcs8EncryptAlg property controls the encryption algorithm used to encrypt.

Returns TRUE for success, FALSE for failure.

More Information and Examples
Export a Private Key from an MS Storage Provider
top
SavePkcs8File
BOOL CkPrivateKeyW_SavePkcs8File(HCkPrivateKeyW cHandle, const wchar_t *path);

Saves the private key to an unencrypted binary PKCS8 format file.

Returns TRUE for success, FALSE for failure.

top
SavePkcs8PemFile
BOOL CkPrivateKeyW_SavePkcs8PemFile(HCkPrivateKeyW cHandle, const wchar_t *path);

Saves the private key to a PKCS8 PEM format file.

Returns TRUE for success, FALSE for failure.

top
SaveXmlFile
BOOL CkPrivateKeyW_SaveXmlFile(HCkPrivateKeyW cHandle, const wchar_t *path);

Saves the private key to an XML file.

Returns TRUE for success, FALSE for failure.

top
UploadToCloud
BOOL CkPrivateKeyW_UploadToCloud(HCkPrivateKeyW cHandle, HCkJsonObjectW jsonIn, HCkJsonObjectW jsonOut);
Introduced in version 9.5.0.96

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 TRUE for success, FALSE for failure.

top
UploadToCloudAsync (1)
HCkTaskW CkPrivateKeyW_UploadToCloudAsync(HCkPrivateKeyW cHandle, HCkJsonObjectW jsonIn, HCkJsonObjectW jsonOut);
Introduced in version 9.5.0.96

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

top