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WinRT (Windows 8.1 and Windows Phone 8.1) implementation of Javascript Object Signing and Encryption (JOSE) and JSON Web Token (JWT)

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WinRT component implementation of Javascript Object Signing and Encryption (JOSE) and JSON Web Token (JWT)

* .NET Framework version of library is here jose-jwt

##Credits

Supported JWA algorithms

Signing

  • HMAC signatures with HS256, HS384 and HS512.
  • RSASSA-PKCS1-V1_5 signatures with RS256, RS384 and RS512.
  • RSASSA-PSS signatures with PS256, PS384 and PS512*
  • ECDSA signatures with ES256, ES384 and ES512.

Encryption

  • Direct symmetric key encryption with pre-shared key A128CBC-HS256, A192CBC-HS384, A256CBC-HS512, A128GCM, A192GCM and A256GCM
  • RSAES OAEP 256 (using SHA-256 and MGF1 with SHA-256) encryption with A128CBC-HS256, A192CBC-HS384, A256CBC-HS512, A128GCM, A192GCM, A256GCM
  • RSAES OAEP (using SHA-1 and MGF1 with SHA-1) encryption with A128CBC-HS256, A192CBC-HS384, A256CBC-HS512, A128GCM, A192GCM, A256GCM
  • RSAES-PKCS1-V1_5 encryption with A128CBC-HS256, A192CBC-HS384, A256CBC-HS512, A128GCM, A192GCM, A256GCM
  • A128KW, A192KW, A256KW encryption with A128CBC-HS256, A192CBC-HS384, A256CBC-HS512, A128GCM, A192GCM, A256GCM
  • PBES2-HS256+A128KW, PBES2-HS384+A192KW, PBES2-HS512+A256KW with A128CBC-HS256, A192CBC-HS384, A256CBC-HS512, A128GCM, A192GCM, A256GCM
Notes:

* It appears that Microsoft implementation of AsymmetricAlgorithmNames.RsaSignPssSha256, AsymmetricAlgorithmNames.RsaSignPssSha384 and AsymmetricAlgorithmNames.RsaSignPssSha512 is broken. At least produced signatures can't be validated on other platforms. jose-rt provides support for PS256, PS384 and PS512 but most likely produced tokens can't be decoded correctly with other JOSE implementations.

Installation

NuGet

Install-Package jose-rt

Manual

Grab source and compile yourself.

Usage

Creating Plaintext (unprotected) Tokens

string payload = @"{""hello"" : ""world""}";

string token = JoseRT.Jwt.Encode(payload, JwsAlgorithm.None, null);

Creating signed Tokens

HS256, HS384 and HS512 family

HS256, HS384, HS512 signatures require byte[] array key of corresponding length

var secretKey = new byte[]{164,60,194,0,161,189,41,38,130,89,141,164,45,170,159,209,69,137,243,216,191,131,47,250,32,107,231,117,37,158,225,234};

string payload = @"{""hello"" : ""world""}";

string token = JoseRT.Jwt.Encode(payload, JwsAlgorithm.HS256, secretKey);

RS256, RS384, RS512 and PS256, PS384, PS512 families

RS256, RS384, RS512 signatures require CryptographicKey private key of corresponding length. JoseRT provides convenient helpers to load RSA keys from commonly used PEM encoded formats. See Obtaining keys section for details.

string payload = @"{""hello"" : ""world""}";

string privateKey=
@"-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----"

	
string token = JoseRT.Jwt.Encode(payload, JwsAlgorithm.RS512, JoseRT.Rsa.PrivateKey.Load(privateKey));

ES256, ES384 and ES512 family

ES256, ES384, ES512 ECDSA signatures requires CryptographicKey private elliptic curve key of corresponding length. JoseRT provides convenient helpers to use raw key material (x,y) and d. See Obtaining keys section for details.

string json = @"{""hello"": ""world""}";

byte[] x = { 4, 114, 29, 223, 58, 3, 191, 170, 67, 128, 229, 33, 242, 178, 157, 150, 133, 25, 209, 139, 166, 69, 55, 26, 84, 48, 169, 165, 67, 232, 98, 9 };
byte[] y = { 131, 116, 8, 14, 22, 150, 18, 75, 24, 181, 159, 78, 90, 51, 71, 159, 214, 186, 250, 47, 207, 246, 142, 127, 54, 183, 72, 72, 253, 21, 88, 53 };
byte[] d = { 42, 148, 231, 48, 225, 196, 166, 201, 23, 190, 229, 199, 20, 39, 226, 70, 209, 148, 29, 70, 125, 14, 174, 66, 9, 198, 80, 251, 95, 107, 98, 206 };

var privateKey= JoseRT.Ecc.PrivateKey.New(x, y, d); 

string token = JoseRT.Jwt.Encode(json, JwsAlgorithm.ES256, privateKey);

Creating encrypted Tokens

DIR direct pre-shared symmetric key family of algorithms

Direct key management with pre-shared symmetric keys requires byte[] array key of corresponding length

string json = @"{""hello"":""world""}";

byte[] sharedKey = new byte[] { 185, 30, 233, 199, 32, 98, 209, 3, 114, 250, 30, 124, 207, 173, 227, 152, 243, 202, 238, 165, 227, 199, 202, 230, 218, 185, 216, 113, 13, 53, 40, 100, 100, 20, 59, 67, 88, 97, 191, 3, 161, 37, 147, 223, 149, 237, 190, 156 };

string token = JoseRT.Jwt.Encode(json, JwaAlgorithms.DIR, JweAlgorithms.A192CBC_HS384, sharedKey);

RSA-* key management family of algorithms

RSA-OAEP-256, RSA-OAEP and RSA1_5 key management requires CryptographicKey public key of corresponding length. JoseRT provides convenient helpers to load RSA keys from commonly used PEM encoded formats. See Obtaining keys section for details.

string payload = @"{""hello"" : ""world""}";

var publicKey= 
@"-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqFZv0pea/jn5Mo4qEUmS
tuhlulso8n1inXbEotd/zTrQp9K0RK0hf7t0K4BjKVhaiqIam4tVVQvkmYeBeYr1
MmnO/0N97dMBz/7fmvyv0hgHaBdQ5mR5u3LTlHo8tjRE7+GzZmGs6jMcyj7HbXob
DPQJZpqNy6JjliDVXxW8nWJDetxGBlqmTj1E1fr2RCsZLreDOPSDIedG1upz9Rra
ShsIDzeefOcKibcAaKeeVI3rkAU8/mOauLSXv37hlk0h6sStJb3qZQXyOUkVkjXI
khvNu/ve0v7LiLT4G/OxYGzpOQcCnimKdojzNP6GtVDaMPh+QkSJE32UCos9R3wI
2QIDAQAB
-----END PUBLIC KEY-----"; 
	
string token = JoseRT.Jwt.Encode(json, JwaAlgorithms.RSA_OAEP_256, JweAlgorithms.A192GCM, JoseRT.Rsa.PublicKey.Load(publicKey));

AES Key Wrap key management family of algorithms

AES128KW, AES192KW and AES256KW key management requires byte[] array key of corresponding length

string json = @"{""hello"":""world""}";

byte[] aesKey = { 194, 164, 235, 6, 138, 248, 171, 239, 24, 216, 11, 22, 137, 199, 215, 133 };

string token = JoseRT.Jwt.Encode(json, JwaAlgorithms.A128KW, JweAlgorithms.A128CBC_HS256, aesKey);

PBES2 using HMAC SHA with AES Key Wrap key management family of algorithms

PBES2-HS256+A128KW, PBES2-HS384+A192KW, PBES2-HS512+A256KW key management requires string passphrase from which key will be derived

string json = @"{""hello"":""world""}";

string token = JoseRT.Jwt.Encode(json, JwaAlgorithms.PBES2_HS512_A256KW, JweAlgorithms.A256CBC_HS512, "top secret");

Verifying and Decoding Tokens

Decoding json web tokens is fully symmetric to creating signed or encrypted tokens:

HS256, HS384, HS512 signatures, A128KW, A192KW, A256KW and DIR key management algorithms expecting byte[] array key

string token = "eyJhbGciOiJkaXIiLCJlbmMiOiJBMjU2R0NNIn0..Fmz3PLVfv-ySl4IJ.LMZpXMDoBIll5yuEs81Bws2-iUUaBSpucJPL-GtDKXkPhFpJmES2T136Vd8xzvp-3JW-fvpRZtlhluqGHjywPctol71Zuz9uFQjuejIU4axA_XiAy-BadbRUm1-25FRT30WtrrxKltSkulmIS5N-Nsi_zmCz5xicB1ZnzneRXGaXY4B444_IHxGBIS_wdurPAN0OEGw4xIi2DAD1Ikc99a90L7rUZfbHNg_iTBr-OshZqDbR6C5KhmMgk5KqDJEN8Ik-Yw.Jbk8ZmO901fqECYVPKOAzg";

byte[] secretKey = new byte[]{164,60,194,0,161,189,41,38,130,89,141,164,45,170,159,209,69,137,243,216,191,131,47,250,32,107,231,117,37,158,225,234};

string json = JoseRT.Jwt.Decode(token, secretKey);

RS256, RS384, RS512 and PS256, PS384, PS512 signatures expecting CryptographicKey public key of corresponding length. JoseRT provides convenient helpers to load RSA keys from commonly used PEM encoded formats. See Obtaining keys section for details.

string token = "eyJhbGciOiJSUzM4NCIsImN0eSI6InRleHRcL3BsYWluIn0.eyJoZWxsbyI6ICJ3b3JsZCJ9.cOPca7YEOxnXVdIi7cJqfgRMmDFPCrZG1M7WCJ23U57rAWvCTaQgEFdLjs7aeRAPY5Su_MVWV7YixcawKKYOGVG9eMmjdGiKHVoRcfjwVywGIb-nuD1IBzGesrQe7mFQrcWKtYD9FurjCY1WuI2FzGPp5YhW5Zf4TwmBvOKz6j2D1vOFfGsogzAyH4lqaMpkHpUAXddQxzu8rmFhZ54Rg4T-jMGVlsdrlAAlGA-fdRZ-V3F2PJjHQYUcyS6n1ULcy6ljEOgT5fY-_8DDLLpI8jAIdIhcHUAynuwvvnDr9bJ4xIy4olFRqcUQIHbcb5-WDeWul_cSGzTJdxDZsnDuvg";

var publicKey= 
@"-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqFZv0pea/jn5Mo4qEUmS
tuhlulso8n1inXbEotd/zTrQp9K0RK0hf7t0K4BjKVhaiqIam4tVVQvkmYeBeYr1
MmnO/0N97dMBz/7fmvyv0hgHaBdQ5mR5u3LTlHo8tjRE7+GzZmGs6jMcyj7HbXob
DPQJZpqNy6JjliDVXxW8nWJDetxGBlqmTj1E1fr2RCsZLreDOPSDIedG1upz9Rra
ShsIDzeefOcKibcAaKeeVI3rkAU8/mOauLSXv37hlk0h6sStJb3qZQXyOUkVkjXI
khvNu/ve0v7LiLT4G/OxYGzpOQcCnimKdojzNP6GtVDaMPh+QkSJE32UCos9R3wI
2QIDAQAB
-----END PUBLIC KEY-----"; 

string json = Jwt.Decode(token, JoseRT.Rsa.PublicKey.Load(publicKey));

ES256, ES384, ES512 signatures expecting CryptographicKey public elliptic curve key of corresponding length. JoseRT provides convenient helpers to use raw key material (x,y). See Obtaining keys section for details.

string token = "eyJhbGciOiJFUzM4NCIsImN0eSI6InRleHRcL3BsYWluIn0.eyJoZWxsbyI6ICJ3b3JsZCJ9.jVTHd9T0fIQDJLNvAq3LPpgj_npXtWb64FfEK8Sm65Nr9q2goUWASrM9jv3h-71UrP4cBpM3on3yN--o6B-Tl6bscVUfpm1swPp94f7XD9VYLEjGMjQOaozr13iBZJCY";

byte[] x = { 4, 114, 29, 223, 58, 3, 191, 170, 67, 128, 229, 33, 242, 178, 157, 150, 133, 25, 209, 139, 166, 69, 55, 26, 84, 48, 169, 165, 67, 232, 98, 9 };
byte[] y = { 131, 116, 8, 14, 22, 150, 18, 75, 24, 181, 159, 78, 90, 51, 71, 159, 214, 186, 250, 47, 207, 246, 142, 127, 54, 183, 72, 72, 253, 21, 88, 53 };

var publicKey=JoseRT.Ecc.PublicKey.New(x, y);

string json = Jwt.Decode(token, publicKey);

RSA-OAEP-256, RSA-OAEP and RSA1_5 key management expecting CryptographicKey private key of corresponding length. JoseRT provides convenient helpers to load RSA keys from commonly used PEM encoded formats. See Obtaining keys section for details.

string token = "eyJhbGciOiJSU0EtT0FFUC0yNTYiLCJlbmMiOiJBMTI4Q0JDLUhTMjU2In0.bje66yTjMUpyGzbt3QvPNOmCmUPowgEmoBHXw-pByhST2VBSs0_67JKDymKW0VpmQC5Qb7ZLC6nNG8YW5pxTZDOeTQLodhAvzoNAsrx4M2R_N58ZVqBPLKTq7FKi1NNd8oJ80dwWbOJ13dkLH68SlhOK5bhqKFgtbzalnglL2kq8Fki1GkN4YyFnS8-chC-mlrS5bJrPSHUF7oAsG_flL_e9-KzYqYTQgGCB3GYSo_pgalsp2rUO3Oz2Pfe9IEJNlX7R9wOT1nTT0UUg-lSzQ2oOaXNvNyaPgEa76mJ1nk7ZQq7ZNix1m8snjk0Vizd8EOFCSRyOGcp4mHMn7-s00Q.tMFMCdFNQXbhEnwE6mP_XQ.E_O_ZBtJ8P0FvhKOV_W98oxIySDgdd0up0c8FAjo-3OVZ_6XMEQYFDKVG_Zc3zkbaz1Z2hmc7D7M28RbhRdya3yJN6Hcv1KuXeZ9ociI7o739Ni_bPvv8xCmGxlASS5AF7N4JR7XjrWL-SYKGNL1p0XNTlPo3B3qYqgAY6jFNvlcjWupim-pQbWKNqPbO2KmSCtUzyKE5oHjsomH0hnQs0_DXv3cgQ_ZFLFZBc1tC4AjQ8QZex5kWg5BmlJDM5F_jD7QRhb7B1u4Mi563-AKVA.0lraw3IXMM6wPqUZVYA8pg";

string privateKey =
@"-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----";

string json = JoseRT.Jwt.Decode(token, JoseRT.Rsa.PrivateKey.Load(privateKey));

PBES2-HS256+A128KW, PBES2-HS384+A192KW, PBES2-HS512+A256KW key management algorithms expects string passpharase as a key

string token = "eyJhbGciOiJQQkVTMi1IUzI1NitBMTI4S1ciLCJlbmMiOiJBMjU2R0NNIiwicDJjIjo4MTkyLCJwMnMiOiJqVVozY0NEX2hMZ3pQVHVfIn0.cgEZLTNOoGgDJXhRj0Ca0DL_HTY2xRKzVpoRnOf_Yuxm6IsQJgf0NA.7sAUk5_ryTMO_hLB.y7arc1aQP1--WUwlUsti4SiW6O2nrmGviTYznPjw9KD9Tu4E4QQO3RCU1uo59qNF3jJ5Mgku5OXV8bJHlouMouUfZbEb2cHgH9GLwY7hbCuYfGBIEyZw6qnHCgLGatO59akKaVDa8fqPo5--V_q0T5Z3xWm7UpK8RHaR8z3kuSBEXI1JH-dgj1EikG0yHSxVkFiInrlNLGzhI-cMTSD5xfLlmhmTzqbdpNp947AQ7pix2IvkQdvdgCo3bbSQVUsSJrLZSg.cO4fVMmdniwtEikHv55cqQ";

string json = JoseRT.Jwt.Decode(token, "top secret");

Obtaining keys

Windows.Security.Cryptography allows to import keys from bunch of different formats, but do not support commonly used PEM encoded formats out of box. To simplify integration and keys exchange between WinRT and other platforms, JoseRT provides set of helpers to import PEM encoded keys or other formats.

RSA keys

JoseRT.Rsa.PublicKey.Load(string) imports CryptographicKey from PEM encoded public key formats

PKCS#1 RSA Public Key
-----BEGIN RSA PUBLIC KEY-----
MIIBCgKCAQEAqFZv0pea/jn5Mo4qEUmS
tuhlulso8n1inXbEotd/zTrQp9K0RK0hf7t0K4BjKVhaiqIam4tVVQvkmYeBeYr1
MmnO/0N97dMBz/7fmvyv0hgHaBdQ5mR5u3LTlHo8tjRE7+GzZmGs6jMcyj7HbXob
DPQJZpqNy6JjliDVXxW8nWJDetxGBlqmTj1E1fr2RCsZLreDOPSDIedG1upz9Rra
ShsIDzeefOcKibcAaKeeVI3rkAU8/mOauLSXv37hlk0h6sStJb3qZQXyOUkVkjXI
khvNu/ve0v7LiLT4G/OxYGzpOQcCnimKdojzNP6GtVDaMPh+QkSJE32UCos9R3wI
2QIDAQAB
-----END RSA PUBLIC KEY-----
X509 Public Subject key info

Can be obtained from certificate via openssl x509 -inform PEM -in certificate.cer -outform PEM -pubkey -noout > public.key

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqFZv0pea/jn5Mo4qEUmS
tuhlulso8n1inXbEotd/zTrQp9K0RK0hf7t0K4BjKVhaiqIam4tVVQvkmYeBeYr1
MmnO/0N97dMBz/7fmvyv0hgHaBdQ5mR5u3LTlHo8tjRE7+GzZmGs6jMcyj7HbXob
DPQJZpqNy6JjliDVXxW8nWJDetxGBlqmTj1E1fr2RCsZLreDOPSDIedG1upz9Rra
ShsIDzeefOcKibcAaKeeVI3rkAU8/mOauLSXv37hlk0h6sStJb3qZQXyOUkVkjXI
khvNu/ve0v7LiLT4G/OxYGzpOQcCnimKdojzNP6GtVDaMPh+QkSJE32UCos9R3wI
2QIDAQAB
-----END PUBLIC KEY-----

JoseRT.Rsa.PrivateKey.Load(string) imports CryptographicKey from PEM encoded private key formats

PKCS#1 RSA Private Key without password protection

Can be obtained from .p12 via openssl pkcs12 -in keys.p12 -nocerts -out privateKey.pem and then openssl.exe rsa -in privateKey.pem -out privateKey.pem to remove password protection.

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
PKCS#8 Raw RSA Private Key

Can be converted from PKCS#1 private key via openssl pkcs8 -topk8 -inform PEM -outform PEM -in privateKey.pem -out privateKey.key -nocrypt

-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----

Elliptic Curve keys

JoseRT provides helpers to construct private or public ECC keys from raw key material: (X,Y) and D, represented as byte[] arrays, elliptic curve will be automatically determined by size of provided material. Supported are NIST P-256, P-384 and P-521 curves.

Private Key

Can be constructed by calling JoseRT.Ecc.PrivateKey.New(x, y, d)

byte[] x = { 0, 248, 73, 203, 53, 184, 34, 69, 111, 217, 230, 255, 108, 212, 241, 229, 95, 239, 93, 131, 100, 37, 86, 152, 87, 98, 170, 43, 25, 35, 80, 137, 62, 112, 197, 113, 138, 116, 114, 55, 165, 128, 8, 139, 148, 237, 109, 121, 40, 205, 3, 61, 127, 28, 195, 58, 43, 228, 224, 228, 82, 224, 219, 148, 204, 96 };
byte[] y = { 0, 60, 71, 97, 112, 106, 35, 121, 80, 182, 20, 167, 143, 8, 246, 108, 234, 160, 193, 10, 3, 148, 45, 11, 58, 177, 190, 172, 26, 178, 188, 240, 91, 25, 67, 79, 64, 241, 203, 65, 223, 218, 12, 227, 82, 178, 66, 160, 19, 194, 217, 172, 61, 250, 23, 78, 218, 130, 160, 105, 216, 208, 235, 124, 46, 32 };
byte[] d = { 0, 222, 129, 9, 133, 207, 123, 116, 176, 83, 95, 169, 29, 121, 160, 137, 22, 21, 176, 59, 203, 129, 62, 111, 19, 78, 14, 174, 20, 211, 56, 160, 83, 42, 74, 219, 208, 39, 231, 33, 84, 114, 71, 106, 109, 161, 116, 243, 166, 146, 252, 231, 137, 228, 99, 149, 152, 123, 201, 157, 155, 131, 181, 106, 179, 112 };

var privateEccKey=JoseRT.Ecc.PrivateKey.New(x, y, d);
Public Key

Can be constructed by calling JoseRT.Ecc.PublicKey.New(x, y)

byte[] x = { 0, 248, 73, 203, 53, 184, 34, 69, 111, 217, 230, 255, 108, 212, 241, 229, 95, 239, 93, 131, 100, 37, 86, 152, 87, 98, 170, 43, 25, 35, 80, 137, 62, 112, 197, 113, 138, 116, 114, 55, 165, 128, 8, 139, 148, 237, 109, 121, 40, 205, 3, 61, 127, 28, 195, 58, 43, 228, 224, 228, 82, 224, 219, 148, 204, 96 };
byte[] y = { 0, 60, 71, 97, 112, 106, 35, 121, 80, 182, 20, 167, 143, 8, 246, 108, 234, 160, 193, 10, 3, 148, 45, 11, 58, 177, 190, 172, 26, 178, 188, 240, 91, 25, 67, 79, 64, 241, 203, 65, 223, 218, 12, 227, 82, 178, 66, 160, 19, 194, 217, 172, 61, 250, 23, 78, 218, 130, 160, 105, 216, 208, 235, 124, 46, 32 };

var publicEccKey=JoseRT.Ecc.PublicKey.New(x, y, d);

More examples

Checkout Win8Tests\CompatibilityTestSuite.cs for more samples.

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WinRT (Windows 8.1 and Windows Phone 8.1) implementation of Javascript Object Signing and Encryption (JOSE) and JSON Web Token (JWT)

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