Supported Algorithms

RSA

IdentityModel Target / Algorithm name	.NET 4.5	.NET 4.6.1	.NET 4.7.2	.NET Standard 2.0
RsaSha256 (RS256)	✅	✅	✅	✅
RsaSha384 (RS384)	✅	✅	✅	✅
RsaSha512 (RS512)	✅	✅	✅	✅
RsaSha256Signature (http://www.w3.org/2001/04/xmldsig-more#rsa-sha256)	✅	✅	✅	✅
RsaSha384Signature (http://www.w3.org/2001/04/xmldsig-more#rsa-sha384)	✅	✅	✅	✅
RsaSha512Signature (http://www.w3.org/2001/04/xmldsig-more#rsa-sha512)	✅	✅	✅	✅
RsaOAEP (RS-OAEP)	✅	✅	✅	✅
RsaPKCS1 (RSA1_5)	✅	✅	✅	✅
RsaOaepKeyWrap (http://www.w3.org/2001/04/xmlenc#rsa-oaep)	✅	✅	✅	✅
RsaSsaPssSha256 (PS256)	❌	❓	❓	❔
RsaSsaPssSha384 (PS384)	❌	❓	❓	❔
RsaSsaPssSha512 (PS512)	❌	❓	❓	❔
RsaSsaPssSha256Signature (http://www.w3.org/2007/05/xmldsig-more#sha256rsa-MGF1)	❌	❓	❓	❔
RsaSsaPssSha384Signature (http://www.w3.org/2007/05/xmldsig-more#sha384rsa-MGF1)	❌	❓	❓	❔
RsaSsaPssSha512Signature (http://www.w3.org/2007/05/xmldsig-more#sha512-rsa-MGF1)	❌	❓	❓	❔

❓ - Supported only by Windows CNG. RSACryptoServiceProvider doesn't support PSS.

❔ - Not available on Unix systems running .NET Core < 2.1.

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ECDsa

IdentityModel Target / Algorithm name	.NET 4.5	.NET 4.6.1	.NET 4.7.2	.NET Standard 2.0
EcdsaSha256 (ES256)	✅	✅	✅	✅
EcdsaSha384 (ES384)	✅	✅	✅	✅
EcdsaSha512 (ES512)	✅	✅	✅	✅
EcdsaSha256Signature (http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha256)	✅	✅	✅	✅
EcdsaSha384Signature (http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha384)	✅	✅	✅	✅
EcdsaSha512Signature (http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha512)	✅	✅	✅	✅

❔ - Not supported on non-Windows systems.

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Hash

IdentityModel Target / Algorithm name	.NET 4.5	.NET 4.6.1	.NET 4.7.2	.NET Standard 2.0
Sha256 (SHA256)	✅	✅	✅	✅
Sha384 (SHA384)	✅	✅	✅	✅
Sha512 (SHA512)	✅	✅	✅	✅
Sha256Digest (http://www.w3.org/2001/04/xmlenc#sha256)	✅	✅	✅	✅
Sha384Digest (http://www.w3.org/2001/04/xmldsig-more#sha384)	✅	✅	✅	✅
Sha512Digest (http://www.w3.org/2001/04/xmlenc#sha512)	✅	✅	✅	✅

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Symmetric

IdentityModel Target / Algorithm name	.NET 4.5	.NET 4.6.1	.NET 4.7.2	.NET Standard 2.0
Aes128CbcHmacSha256 (A128CBC-HS256)	✅	✅	✅	✅
Aes192CbcHmacSha384 (A192CBC-HS384)	✅	✅	✅	✅
Aes256CbcHmacSha512 (A256CBC-HS512)	✅	✅	✅	✅
Aes128KW (A128KW)	✅	✅	✅	✅
Aes256KW (A256KW)	✅	✅	✅	✅
HmacSha256 (HS256)	✅	✅	✅	✅
HmacSha384 (HS384)	✅	✅	✅	✅
HmacSha512 (HS512)	✅	✅	✅	✅
HmacSha256Signature (http://www.w3.org/2001/04/xmldsig-more#hmac-sha256)	✅	✅	✅	✅
HmacSha384Signature (http://www.w3.org/2001/04/xmldsig-more#hmac-sha384)	✅	✅	✅	✅
HmacSha512Signature (http://www.w3.org/2001/04/xmldsig-more#hmac-sha512)	✅	✅	✅	✅