SshKey C# Reference Documentation

SshKey

Current Version: 10.1.0

Provides the ability to read and write Putty and OpenSSH format public and private keys. Supports both DSA and RSA keys. Able to generate new keys. Encryption/decryption of keys is supported. Can convert to/from Putty OpenSSH, and XML formats.

Object Creation

Chilkat.SshKey obj = new Chilkat.SshKey();

Properties

Comment

public string Comment {get; set; }

Some key file formats allow a comment to be included. This is the comment if present.

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DebugLogFilePath

public string DebugLogFilePath {get; set; }

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.

More Information and Examples

(.NET Core C#) Example showing how to use DebugLogFilePath.(C#) Example showing how to use DebugLogFilePath.(Mono C#) Example showing how to use DebugLogFilePath.(PowerShell) Example showing how to use DebugLogFilePath.

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IsDsaKey

public bool IsDsaKey {get; }

true if the object contains a DSA key. false if the object contains an RSA key.

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IsPrivateKey

public bool IsPrivateKey {get; }

true if the object contains a private key. false if it contains a public key.

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IsRsaKey

public bool IsRsaKey {get; }

true if the object contains an RSA key. false if the object contains a DSA key.

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KeyType

public string KeyType {get; }

Introduced in version 9.5.0.83

Indicates the type of key held in this object instance. Can be "rsa", "dsa", "ecdsa", "ed25519", or "none".

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LastErrorHtml

public string LastErrorHtml {get; }

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.

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LastErrorText

public string LastErrorText {get; }

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 LastErrorText LastErrorText Standard Information

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LastErrorXml

public string LastErrorXml {get; }

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.

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LastMethodSuccess

public bool LastMethodSuccess {get; set; }

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.

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Password

public string Password {get; set; }

The password to be used when importing or exporting encrypted private keys. If the private key is in an unencrypted format, the password is ignored.

More Information and Examples

(.NET Core C#) Use PuTTY Key for SSH Tunnel (PPK Private Key)(C#) Use PuTTY Key for SSH Tunnel (PPK Private Key)(Mono C#) Use PuTTY Key for SSH Tunnel (PPK Private Key)(PowerShell) Use PuTTY Key for SSH Tunnel (PPK Private Key)

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UncommonOptions

public string UncommonOptions {get; set; }

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

Can be set to a list of the following comma separated keywords:

"DES-EDE3-CBC" - Use older Triple-DES encryption (instead of the default AES-128-CBC) when creating encrypted OpenSSH private keys.

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VerboseLogging

public bool VerboseLogging {get; set; }

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.

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Version

public string Version {get; }

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

More Information and Examples

(.NET Core C#) How to get the Chilkat version at runtime.(C#) How to get the Chilkat version at runtime.(Mono C#) How to get the Chilkat version at runtime.(PowerShell) How to get the Chilkat version at runtime.

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Methods

FromOpenSshPrivateKey

public bool FromOpenSshPrivateKey(string keyStr);

Loads an SSH key from an OpenSSH private-key file format. If the key is encrypted, set the Password property prior to calling this method.

Note: keyStr is not a filename -- it should contain the contents of the OpenSSH formatted private key. To load from a file, you may first call LoadText to load the complete contents of a text file into a string.

Here are are samples of RSA and DSA private keys in OpenSSH format, both encrypted and unencrypted:

Encrypted OpenSSH DSA Key

Unencrypted OpenSSH DSA Key

Encrypted OpenSSH RSA Key

Unencrypted OpenSSH RSA Key

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) Load an SSH Key from a File (C#) Load an SSH Key from a File (Mono C#) Load an SSH Key from a File (PowerShell) Load an SSH Key from a File

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FromOpenSshPublicKey

public bool FromOpenSshPublicKey(string keyStr);

Loads an OpenSSH public-key from an OpenSSH formatted public-key.

Note: keyStr is not a filename -- it should contain the contents of the OpenSSH formatted public key. To load from a file, you may first call LoadText to load the complete contents of a text file into a string.

Sample OpenSSH-formatted DSA and RSA public keys are below:

OpenSSH RSA Public Key (Line-breaks are added for readability. An OpenSSH-formatted public key would typically be a single line, not multiple lines.)

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCAKJRD01Tzzg94edu17O
zHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZkTXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjL
ZFnLSx9pMGfXMNe8K/aatUvkPVCc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZP
OHASIRNJybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkcGRKhqQ1aTK0
s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH

OpenSSH DSA Public Key (Line-breaks are added for readability.)

ssh-dss AAAAB3NzaC1kc3MAAAEBAKo/+RUI3bL8WrCL8XRCmyHtErh3ycZS0nQqryrJJ6Z9ulAUnVucF6olEpi61O5iyEQF
cXUO7pnKdzfMP3SIlZIib5vrVEKpT2K3ep9iSvnkNJRrT3prJ+n0Mx4VJhtIwhYKLd5zaHbKW+XrlMVa1NAQqtj6Skb
hirenMquaBAL5YNSuqb6c3vLWfnrWRk6DdrgUP98rBo4Ig7N2YIf5N6PvFLXrgXY3fGsBB3CMxZpfMN/l1hI7jrJVq3
WvCojwkWRECGzX4ma3E8wHnzUcyYSiS+hJLglPt6GaPAy+l3PtDm5JOuOpGFeaA2GzwQ5jSEAQq+qHTR51pwQ
Z0rN02y0AAAAVANkiO001oz4lzhsO/tDx9rpOyH/5AAABAA8UN/pP7CYBI1KJ5KvBM7SSd5S5ItjA2ALboHF5uAWB
KpaJvaHyHi/v/eCd1BahglmdTsWoP2W5p4HmHjr6fLseuPGyLTHkGFgKd/zC5eTBid8ShNPJIByKm7XVGvLFhDqhiN
KIIsOqYKYkNXmQjms5VInwT4GfE2orVr5MPSg3k3DtX220CIrEBaPXK4JRdrq2Jezxh7Pp76w+ZEfaQhgf9uEPWtBe0
zmKsQ2gjdjRphm+tl4gFR0r4JuJeOTs9UZ4rZlMojK2Ew64rHhaAROHHjOJiQdvBEBYxXNru71sqt7xQbYtqHBR+oBgR
FbPPouNMIUexC4DKxyNeuN2zIcAAAEAXh/Akb90+cojwtyjzXTxA9h4CzfTE1G0cWziwToFYPVt/xWZM1/kDEAWR
WtTDidZWRxWXxP+8J7PrMwA4Pwoq2SPW1u9qQh1mGpPaPDluPiRbMKL2uV9oLfVEY7naVrqH05EPgtbiNjDin7E
Qljo3IoKzpEKB1lFHT/Vd4CMTdl7o+QhZ5ftMGv9sbmf2eZ6y9fQpebO7o4w7/LgQ5SaIWYaCiTZWNTS4vLeNBuJB
VJL/pL3tMQrQFqHAg4o94q6M5Y6NvnsSoyZ3gs5bnuyH/wk2oXdlNhRVx1DMYBSdeWRlgjLYUBEKDABs+1N/9nB
IZDEUQYvVA71Fawp4cqizg==

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) Load an SSH Key from a File (C#) Load an SSH Key from a File (Mono C#) Load an SSH Key from a File (PowerShell) Load an SSH Key from a File

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FromPuttyPrivateKey

public bool FromPuttyPrivateKey(string keyStr);

Loads an SSH key from a PuTTY private-key file format. If the key is encrypted, set the Password property prior to calling this method.

Note: keyStr is not a filename -- it should contain the contents of the PuTTY formatted private key. To load from a file, you may first call LoadText to load the complete contents of a text file into a string.

Below are samples of RSA and DSA private keys in PuTTY format, both encrypted and unencrypted:

Encrypted PuTTY DSA Key

PuTTY-User-Key-File-2: ssh-dss
Encryption: aes256-cbc
Comment: dss-key-20080914
Public-Lines: 18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Private-Lines: 1
L2iyk4xEmQi4IK8ZCm35/UDan0VVUdd9whyljTo6SoA=
Private-MAC: 5633A6762B5D9016A5B1D7753713C4A13CD734EC

Unencrypted PuTTY DSA Key

PuTTY-User-Key-File-2: ssh-dss
Encryption: none
Comment: dss-key-20080914
Public-Lines: 18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Private-Lines: 1
AAAAFQCiOKUm5Zc7IFNDQfiEE0FOwv0yrw==
Private-MAC: 7A13473EBD5C8E1ADD57D8AE5A5EF3F1789DDD8B

Encrypted PuTTY RSA Key

PuTTY-User-Key-File-2: ssh-rsa
Encryption: aes256-cbc
Comment: rsa-key-20080914
Public-Lines: 6
AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCA
KJRD01Tzzg94edu17OzHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZk
TXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjLZFnLSx9pMGfXMNe8K/aatUvkPV
Cc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZPOHASIRN
Jybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkc
GRKhqQ1aTK0s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH
Private-Lines: 14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-MAC: 743AFA7F93ABE10BF61C21B9BDEFDCBF52F04980

Unencrypted PuTTY RSA Key

PuTTY-User-Key-File-2: ssh-rsa
Encryption: none
Comment: rsa-key-20080914
Public-Lines: 6
AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCA
KJRD01Tzzg94edu17OzHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZk
TXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjLZFnLSx9pMGfXMNe8K/aatUvkPV
Cc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZPOHASIRN
Jybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkc
GRKhqQ1aTK0s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH
Private-Lines: 14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Private-MAC: 3BE4CAA1B2AE19C3E6841639BD7275019CF961F1

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) Convert PuTTY Private Key (ppk) to OpenSSH (pem)(C#) Convert PuTTY Private Key (ppk) to OpenSSH (pem)(Mono C#) Convert PuTTY Private Key (ppk) to OpenSSH (pem)(PowerShell) Convert PuTTY Private Key (ppk) to OpenSSH (pem)(.NET Core C#) Load an SSH Key from a File (C#) Load an SSH Key from a File (Mono C#) Load an SSH Key from a File (PowerShell) Load an SSH Key from a File

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FromRfc4716PublicKey

public bool FromRfc4716PublicKey(string keyStr);

Loads an SSH public key from an RFC 4716 format.

Note: keyStr is not a filename -- it should contain the contents of the PuTTY formatted public key. To load from a file, you may first call LoadText to load the complete contents of a text file into a string. Sample RFC 4716 DSA and RSA public keys are below:

RSA Public Key

---- BEGIN SSH2 PUBLIC KEY ----
Comment: "This is an optional comment"
AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCA
KJRD01Tzzg94edu17OzHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZk
TXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjLZFnLSx9pMGfXMNe8K/aatUvkPV
Cc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZPOHASIRN
Jybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkc
GRKhqQ1aTK0s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH
---- END SSH2 PUBLIC KEY ----

DSA Public Key

---- BEGIN SSH2 PUBLIC KEY ----
Comment: "This is an optional comment"
AAAAB3NzaC1kc3MAAAEBAKo/+RUI3bL8WrCL8XRCmyHtErh3ycZS0nQqryrJJ6Z9
ulAUnVucF6olEpi61O5iyEQFcXUO7pnKdzfMP3SIlZIib5vrVEKpT2K3ep9iSvnk
NJRrT3prJ+n0Mx4VJhtIwhYKLd5zaHbKW+XrlMVa1NAQqtj6SkbhirenMquaBAL5
YNSuqb6c3vLWfnrWRk6DdrgUP98rBo4Ig7N2YIf5N6PvFLXrgXY3fGsBB3CMxZpf
MN/l1hI7jrJVq3WvCojwkWRECGzX4ma3E8wHnzUcyYSiS+hJLglPt6GaPAy+l3Pt
Dm5JOuOpGFeaA2GzwQ5jSEAQq+qHTR51pwQZ0rN02y0AAAAVANkiO001oz4lzhsO
/tDx9rpOyH/5AAABAA8UN/pP7CYBI1KJ5KvBM7SSd5S5ItjA2ALboHF5uAWBKpaJ
vaHyHi/v/eCd1BahglmdTsWoP2W5p4HmHjr6fLseuPGyLTHkGFgKd/zC5eTBid8S
hNPJIByKm7XVGvLFhDqhiNKIIsOqYKYkNXmQjms5VInwT4GfE2orVr5MPSg3k3Dt
X220CIrEBaPXK4JRdrq2Jezxh7Pp76w+ZEfaQhgf9uEPWtBe0zmKsQ2gjdjRphm+
tl4gFR0r4JuJeOTs9UZ4rZlMojK2Ew64rHhaAROHHjOJiQdvBEBYxXNru71sqt7x
QbYtqHBR+oBgRFbPPouNMIUexC4DKxyNeuN2zIcAAAEAXh/Akb90+cojwtyjzXTx
A9h4CzfTE1G0cWziwToFYPVt/xWZM1/kDEAWRWtTDidZWRxWXxP+8J7PrMwA4Pwo
q2SPW1u9qQh1mGpPaPDluPiRbMKL2uV9oLfVEY7naVrqH05EPgtbiNjDin7EQljo
3IoKzpEKB1lFHT/Vd4CMTdl7o+QhZ5ftMGv9sbmf2eZ6y9fQpebO7o4w7/LgQ5Sa
IWYaCiTZWNTS4vLeNBuJBVJL/pL3tMQrQFqHAg4o94q6M5Y6NvnsSoyZ3gs5bnuy
H/wk2oXdlNhRVx1DMYBSdeWRlgjLYUBEKDABs+1N/9nBIZDEUQYvVA71Fawp4cqi
zg==
---- END SSH2 PUBLIC KEY ----

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) Load an SSH Key from a File (C#) Load an SSH Key from a File (Mono C#) Load an SSH Key from a File (PowerShell) Load an SSH Key from a File

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FromXml

public bool FromXml(string xmlKey);

Loads an SSH key from XML.

Note: xmlKey is not a filename -- it should contain the contents of the XML SSH key. To load from a file, you may first call LoadText to load the complete contents of a text file into a string.

Here are RSA public/private keys in XML format:

<RSAPublicKey>
    <Modulus>x+52s7vvaZ8rT2UdFZWlSUVDHD ... D/m73pYaEJB3Nd7w==</Modulus>
    <Exponent>JQ==</Exponent>
</RSAPublicKey>

<RSAKeyValue>
    <Modulus>vTjHMg1+n.....JHHlPIghw==</Modulus>
    <Exponent>AQAB</Exponent>
    <P>zfbbQagHiP48y.....udBR7n5w+MhP7c=</P>
    <Q>6zCwDGB8ipB....dSEy+BvdVRv9hbE=</Q>
    <DP>zcNdvlUg2g......9F72NjnAhQUjc=</DP>
    <DQ>1XB2FIVsA.....qNewUutJKWXcE=</DQ>
    <InverseQ>qHYYHyZI9d....VuqCeqsMeJ9I=</InverseQ>
    <D>Ar1Xgk/P1t4fd2Ryr........Onkwwn4Q==</D>
</RSAKeyValue>

Returns true for success, false for failure.

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GenerateDsaKey

public bool GenerateDsaKey(int numBits);

Generates a new SSH DSA key that is numBits bits in length. The numBits should be at least 1024 bits and a multiple of 64. Typical values are 1024 and 2048.

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) Generate DSA SSH Key (C#) Generate DSA SSH Key (Mono C#) Generate DSA SSH Key (PowerShell) Generate DSA SSH Key

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GenerateEcdsaKey

public bool GenerateEcdsaKey(string curveName);

Introduced in version 9.5.0.83

Generates an ECDSA (ECC) private key. The curveName specifies the curve name which determines the key size.

The following curve names are accepted:

secp256r1 (also known as P-256 and prime256v1)
secp384r1 (also known as P-384)
secp521r1 (also known as P-521)

Returns true for success, false for failure.

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GenerateEd25519Key

public bool GenerateEd25519Key();

Introduced in version 9.5.0.83

Generates a new ED25519 public/private key pair.

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) Generate ed25519 Key and Save to PuTTY Format (C#) Generate ed25519 Key and Save to PuTTY Format (Mono C#) Generate ed25519 Key and Save to PuTTY Format (PowerShell) Generate ed25519 Key and Save to PuTTY Format

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GenerateRsaKey

public bool GenerateRsaKey(int numBits, int exponent);

Generates a new RSA public/private key pair. The numBits can range from 384 to 4096. Typical key lengths are 1024 or 2048 bits. After successful generation, the public/private keys can be exported in OpenSSH or PuTTY format.

(excerpt from Wikipedia's article on RSA) 65537 is a commonly used value for exponent. This value can be regarded as a compromise between avoiding potential small exponent attacks and still allowing efficient encryptions (or signature verification). The NIST Special Publication on Computer Security (SP 800-78 Rev 1 of August 2007) does not allow public exponents e smaller than 65537, but does not state a reason for this restriction.

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) Generate RSA SSH Key (C#) Generate RSA SSH Key (Mono C#) Generate RSA SSH Key (PowerShell) Generate RSA SSH Key (.NET Core C#) Generate RSA Key for SFTP (C#) Generate RSA Key for SFTP (Mono C#) Generate RSA Key for SFTP (PowerShell) Generate RSA Key for SFTP

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GenFingerprint

public string GenFingerprint();

Generates a fingerpring for an SSH key. A sample fingerprint looks like this:

ssh-dss 2048 d0:5f:f7:d6:49:60:7b:50:19:f4:41:59:d4:1f:61:7a

Returns null on failure

More Information and Examples

(.NET Core C#) SSH Key Fingerprint (C#) SSH Key Fingerprint (Mono C#) SSH Key Fingerprint (PowerShell) SSH Key Fingerprint

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LoadText

public string LoadText(string filename);

Convenience method for loading an entire text file into an in-memory string.

Returns null on failure

More Information and Examples

(.NET Core C#) Load an SSH Key from a File (C#) Load an SSH Key from a File (Mono C#) Load an SSH Key from a File (PowerShell) Load an SSH Key from a File

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SaveText

public bool SaveText(string strToSave, string filename);

Convenience method for saving the contents of a string variable to a file.

Returns true for success, false for failure.

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ToOpenSshPrivateKey

public string ToOpenSshPrivateKey(bool bEncrypt);

Exports the private key to a string in OpenSSH format. If bEncrypt is true, the key is encrypted using the value of the Password property. Below are samples of RSA and DSA private keys in OpenSSH format, both encrypted and unencrypted:

Encrypted OpenSSH DSA Key

Unencrypted OpenSSH DSA Key

Encrypted OpenSSH RSA Key

Unencrypted OpenSSH RSA Key

Returns null on failure

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ToOpenSshPublicKey

public string ToOpenSshPublicKey();

Exports the public key to a string in OpenSSH format. Sample OpenSSH-formatted DSA and RSA public keys are below:

OpenSSH RSA Public Key (Line-breaks are added for readability. An OpenSSH-formatted public key would typically be a single line, not multiple lines.)

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCAKJRD01Tzzg94edu17O
zHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZkTXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjL
ZFnLSx9pMGfXMNe8K/aatUvkPVCc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZP
OHASIRNJybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkcGRKhqQ1aTK0
s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH

OpenSSH DSA Public Key (Line-breaks are added for readability.)

ssh-dss AAAAB3NzaC1kc3MAAAEBAKo/+RUI3bL8WrCL8XRCmyHtErh3ycZS0nQqryrJJ6Z9ulAUnVucF6olEpi61O5iyEQF
cXUO7pnKdzfMP3SIlZIib5vrVEKpT2K3ep9iSvnkNJRrT3prJ+n0Mx4VJhtIwhYKLd5zaHbKW+XrlMVa1NAQqtj6Skb
hirenMquaBAL5YNSuqb6c3vLWfnrWRk6DdrgUP98rBo4Ig7N2YIf5N6PvFLXrgXY3fGsBB3CMxZpfMN/l1hI7jrJVq3
WvCojwkWRECGzX4ma3E8wHnzUcyYSiS+hJLglPt6GaPAy+l3PtDm5JOuOpGFeaA2GzwQ5jSEAQq+qHTR51pwQ
Z0rN02y0AAAAVANkiO001oz4lzhsO/tDx9rpOyH/5AAABAA8UN/pP7CYBI1KJ5KvBM7SSd5S5ItjA2ALboHF5uAWB
KpaJvaHyHi/v/eCd1BahglmdTsWoP2W5p4HmHjr6fLseuPGyLTHkGFgKd/zC5eTBid8ShNPJIByKm7XVGvLFhDqhiN
KIIsOqYKYkNXmQjms5VInwT4GfE2orVr5MPSg3k3DtX220CIrEBaPXK4JRdrq2Jezxh7Pp76w+ZEfaQhgf9uEPWtBe0
zmKsQ2gjdjRphm+tl4gFR0r4JuJeOTs9UZ4rZlMojK2Ew64rHhaAROHHjOJiQdvBEBYxXNru71sqt7xQbYtqHBR+oBgR
FbPPouNMIUexC4DKxyNeuN2zIcAAAEAXh/Akb90+cojwtyjzXTxA9h4CzfTE1G0cWziwToFYPVt/xWZM1/kDEAWR
WtTDidZWRxWXxP+8J7PrMwA4Pwoq2SPW1u9qQh1mGpPaPDluPiRbMKL2uV9oLfVEY7naVrqH05EPgtbiNjDin7E
Qljo3IoKzpEKB1lFHT/Vd4CMTdl7o+QhZ5ftMGv9sbmf2eZ6y9fQpebO7o4w7/LgQ5SaIWYaCiTZWNTS4vLeNBuJB
VJL/pL3tMQrQFqHAg4o94q6M5Y6NvnsSoyZ3gs5bnuyH/wk2oXdlNhRVx1DMYBSdeWRlgjLYUBEKDABs+1N/9nB
IZDEUQYvVA71Fawp4cqizg==

Returns null on failure

More Information and Examples

(.NET Core C#) Get PuTTY Public Key from Private PPK (C#) Get PuTTY Public Key from Private PPK (Mono C#) Get PuTTY Public Key from Private PPK (PowerShell) Get PuTTY Public Key from Private PPK (.NET Core C#) Load a PuTTY Public Key (C#) Load a PuTTY Public Key (Mono C#) Load a PuTTY Public Key (PowerShell) Load a PuTTY Public Key (.NET Core C#) Get Public Key in Format for ~/.ssh/authorized_keys (C#) Get Public Key in Format for ~/.ssh/authorized_keys (Mono C#) Get Public Key in Format for ~/.ssh/authorized_keys (PowerShell) Get Public Key in Format for ~/.ssh/authorized_keys

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ToPuttyPrivateKey

public string ToPuttyPrivateKey(bool bEncrypt);

Exports the private key to PuTTY format. If bEncrypt is true, the key is encrypted using the value of the Password property. Below are samples of RSA and DSA private keys in PuTTY format, both encrypted and unencrypted:

Encrypted PuTTY DSA Key

PuTTY-User-Key-File-2: ssh-dss
Encryption: aes256-cbc
Comment: dss-key-20080914
Public-Lines: 18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Private-Lines: 1
L2iyk4xEmQi4IK8ZCm35/UDan0VVUdd9whyljTo6SoA=
Private-MAC: 5633A6762B5D9016A5B1D7753713C4A13CD734EC

Unencrypted PuTTY DSA Key

PuTTY-User-Key-File-2: ssh-dss
Encryption: none
Comment: dss-key-20080914
Public-Lines: 18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Private-Lines: 1
AAAAFQCiOKUm5Zc7IFNDQfiEE0FOwv0yrw==
Private-MAC: 7A13473EBD5C8E1ADD57D8AE5A5EF3F1789DDD8B

Encrypted PuTTY RSA Key

PuTTY-User-Key-File-2: ssh-rsa
Encryption: aes256-cbc
Comment: rsa-key-20080914
Public-Lines: 6
AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCA
KJRD01Tzzg94edu17OzHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZk
TXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjLZFnLSx9pMGfXMNe8K/aatUvkPV
Cc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZPOHASIRN
Jybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkc
GRKhqQ1aTK0s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH
Private-Lines: 14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-MAC: 743AFA7F93ABE10BF61C21B9BDEFDCBF52F04980

Unencrypted PuTTY RSA Key

PuTTY-User-Key-File-2: ssh-rsa
Encryption: none
Comment: rsa-key-20080914
Public-Lines: 6
AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCA
KJRD01Tzzg94edu17OzHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZk
TXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjLZFnLSx9pMGfXMNe8K/aatUvkPV
Cc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZPOHASIRN
Jybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkc
GRKhqQ1aTK0s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH
Private-Lines: 14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Private-MAC: 3BE4CAA1B2AE19C3E6841639BD7275019CF961F1

Returns null on failure

More Information and Examples

(.NET Core C#) Generate RSA Key for SFTP (C#) Generate RSA Key for SFTP (Mono C#) Generate RSA Key for SFTP (PowerShell) Generate RSA Key for SFTP

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ToRfc4716PublicKey

public string ToRfc4716PublicKey();

Exports the public key to a string in RFC 4716 format. Sample RFC 4716 DSA and RSA public keys are below:

RSA Public Key

---- BEGIN SSH2 PUBLIC KEY ----
Comment: "This is an optional comment"
AAAAB3NzaC1yc2EAAAADAQABAAABAQC9OMcyDX6cCiBjejxXzNcrB/5W5My0hmCA
KJRD01Tzzg94edu17OzHkpG4C02qFa2ASw2DT9oe/qj/sTgckT08KpWlRedNXWZk
TXgG+a6wKe7PUcudXcK1JbcE6H3yweLHC7QjjLZFnLSx9pMGfXMNe8K/aatUvkPV
Cc5nwH9WLl9x5B15ot7pTOPq9OLkwFaPO9WiD/EOvS0SjgU9Ga7pJSSZPOHASIRN
Jybmo6b1WdOvY72wKJsU+aqs4MYDOmP85YgfZEwxPUH02Xo/om8dZlz3auqtRVkc
GRKhqQ1aTK0s3mNbLHAh0IXFC8KcAqJzu46h0xKKoNQ8kceU8iCH
---- END SSH2 PUBLIC KEY ----

DSA Public Key

---- BEGIN SSH2 PUBLIC KEY ----
Comment: "This is an optional comment"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---- END SSH2 PUBLIC KEY ----

Returns null on failure

More Information and Examples

(.NET Core C#) Get PuTTY Public Key from Private PPK (C#) Get PuTTY Public Key from Private PPK (Mono C#) Get PuTTY Public Key from Private PPK (PowerShell) Get PuTTY Public Key from Private PPK

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ToXml

public string ToXml();

Exports an SSH key to XML. Samples of RSA and DSA private keys are shown below:

DSA Key

<DSAKeyValue>
    <P>qj/5FQjdsvxasIvxd......Ss3TbLQ==</P>
    <Q>2SI7TTWjPiXOGw7+0PH2uk7If/k=</Q>
    <G>DxQ3+k/sJgEjUon......643bMhw==</G>
    <Y>Xh/Akb90+cojwty.....VA71p4cqizg==</Y>
    <X>ojilJuWXOyBTQ0H4hBNBTsL9Mq8=</X>
</DSAKeyValue>

RSA Key

<RSAKeyValue>
    <Modulus>vTjHMg1+n.....JHHlPIghw==</Modulus>
    <Exponent>AQAB</Exponent>
    <P>zfbbQagHiP48y.....udBR7n5w+MhP7c=</P>
    <Q>6zCwDGB8ipB....dSEy+BvdVRv9hbE=</Q>
    <DP>zcNdvlUg2g......9F72NjnAhQUjc=</DP>
    <DQ>1XB2FIVsA.....qNewUutJKWXcE=</DQ>
    <InverseQ>qHYYHyZI9d....VuqCeqsMeJ9I=</InverseQ>
    <D>Ar1Xgk/P1t4fd2Ryr........Onkwwn4Q==</D>
</RSAKeyValue>

Returns null on failure

More Information and Examples

(.NET Core C#) Load a PuTTY Public Key (C#) Load a PuTTY Public Key (Mono C#) Load a PuTTY Public Key (PowerShell) Load a PuTTY Public Key

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UsePkcs11

public bool UsePkcs11(Pkcs11 session, uint privKeyHandle, uint pubKeyHandle, string keyType);

Introduced in version 9.5.0.96

Use a private key in a PKCS11 session for public-key authentication, where your private key is on an HSM, such as a smart card or hardware token. Both the public and private key handles must be provided. The keyType can be "RSA" or "EC".

Returns true for success, false for failure.

More Information and Examples

(.NET Core C#) SSH Authenticate using Smart Card Private Key (C#) SSH Authenticate using Smart Card Private Key (Mono C#) SSH Authenticate using Smart Card Private Key (PowerShell) SSH Authenticate using Smart Card Private Key

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