Chilkat2-Python
Chilkat2-Python
Create JWS with Multiple Signatures using the General JSON Serialization Format
See more JSON Web Signatures (JWS) Examples
Creates a JSON Web Signature (JWS) containing 3 signatures and output using the general JSON serialization format.Chilkat supports all of the following JWS algorithms:
+--------------+-------------------------------+--------------------+ | "alg" Param | Digital Signature or MAC | Implementation | | Value | Algorithm | Requirements | +--------------+-------------------------------+--------------------+ | HS256 | HMAC using SHA-256 | Required | | HS384 | HMAC using SHA-384 | Optional | | HS512 | HMAC using SHA-512 | Optional | | RS256 | RSASSA-PKCS1-v1_5 using | Recommended | | | SHA-256 | | | RS384 | RSASSA-PKCS1-v1_5 using | Optional | | | SHA-384 | | | RS512 | RSASSA-PKCS1-v1_5 using | Optional | | | SHA-512 | | | ES256 | ECDSA using P-256 and SHA-256 | Recommended+ | | ES384 | ECDSA using P-384 and SHA-384 | Optional | | ES512 | ECDSA using P-521 and SHA-512 | Optional | | PS256 | RSASSA-PSS using SHA-256 and | Optional | | | MGF1 with SHA-256 | | | PS384 | RSASSA-PSS using SHA-384 and | Optional | | | MGF1 with SHA-384 | | | PS512 | RSASSA-PSS using SHA-512 and | Optional | | | MGF1 with SHA-512 | | +--------------+-------------------------------+--------------------+
Note: This example requires Chilkat v9.5.0.66 or greater.
Chilkat Chilkat2-Python Downloads
import sys
import chilkat2
success = False
# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
# Note: This example requires Chilkat v9.5.0.66 or greater.
# The JWS to be created will contain three signatures.
# The 1st will use an ECC key, the 2nd an RSA key, and the 3rd an HMAC key.
# Prepare each key..
# ---------------------------------------------------
# Use the following RSA key loaded from JWK format.
sbRsaJwk = chilkat2.StringBuilder()
sbRsaJwk.Append("{\"kty\":\"RSA\",")
sbRsaJwk.Append("\"n\":\"ofgWCuLjybRlzo0tZWJjNiuSfb4p4fAkd_wWJcyQoTbji9k0l8W26mPddx")
sbRsaJwk.Append("HmfHQp-Vaw-4qPCJrcS2mJPMEzP1Pt0Bm4d4QlL-yRT-SFd2lZS-pCgNMs")
sbRsaJwk.Append("D1W_YpRPEwOWvG6b32690r2jZ47soMZo9wGzjb_7OMg0LOL-bSf63kpaSH")
sbRsaJwk.Append("SXndS5z5rexMdbBYUsLA9e-KXBdQOS-UTo7WTBEMa2R2CapHg665xsmtdV")
sbRsaJwk.Append("MTBQY4uDZlxvb3qCo5ZwKh9kG4LT6_I5IhlJH7aGhyxXFvUK-DWNmoudF8")
sbRsaJwk.Append("NAco9_h9iaGNj8q2ethFkMLs91kzk2PAcDTW9gb54h4FRWyuXpoQ\",")
sbRsaJwk.Append("\"e\":\"AQAB\",")
sbRsaJwk.Append("\"d\":\"Eq5xpGnNCivDflJsRQBXHx1hdR1k6Ulwe2JZD50LpXyWPEAeP88vLNO97I")
sbRsaJwk.Append("jlA7_GQ5sLKMgvfTeXZx9SE-7YwVol2NXOoAJe46sui395IW_GO-pWJ1O0")
sbRsaJwk.Append("BkTGoVEn2bKVRUCgu-GjBVaYLU6f3l9kJfFNS3E0QbVdxzubSu3Mkqzjkn")
sbRsaJwk.Append("439X0M_V51gfpRLI9JYanrC4D4qAdGcopV_0ZHHzQlBjudU2QvXt4ehNYT")
sbRsaJwk.Append("CBr6XCLQUShb1juUO1ZdiYoFaFQT5Tw8bGUl_x_jTj3ccPDVZFD9pIuhLh")
sbRsaJwk.Append("BOneufuBiB4cS98l2SR_RQyGWSeWjnczT0QU91p1DhOVRuOopznQ\",")
sbRsaJwk.Append("\"p\":\"4BzEEOtIpmVdVEZNCqS7baC4crd0pqnRH_5IB3jw3bcxGn6QLvnEtfdUdi")
sbRsaJwk.Append("YrqBdss1l58BQ3KhooKeQTa9AB0Hw_Py5PJdTJNPY8cQn7ouZ2KKDcmnPG")
sbRsaJwk.Append("BY5t7yLc1QlQ5xHdwW1VhvKn-nXqhJTBgIPgtldC-KDV5z-y2XDwGUc\",")
sbRsaJwk.Append("\"q\":\"uQPEfgmVtjL0Uyyx88GZFF1fOunH3-7cepKmtH4pxhtCoHqpWmT8YAmZxa")
sbRsaJwk.Append("ewHgHAjLYsp1ZSe7zFYHj7C6ul7TjeLQeZD_YwD66t62wDmpe_HlB-TnBA")
sbRsaJwk.Append("-njbglfIsRLtXlnDzQkv5dTltRJ11BKBBypeeF6689rjcJIDEz9RWdc\",")
sbRsaJwk.Append("\"dp\":\"BwKfV3Akq5_MFZDFZCnW-wzl-CCo83WoZvnLQwCTeDv8uzluRSnm71I3Q")
sbRsaJwk.Append("CLdhrqE2e9YkxvuxdBfpT_PI7Yz-FOKnu1R6HsJeDCjn12Sk3vmAktV2zb")
sbRsaJwk.Append("34MCdy7cpdTh_YVr7tss2u6vneTwrA86rZtu5Mbr1C1XsmvkxHQAdYo0\",")
sbRsaJwk.Append("\"dq\":\"h_96-mK1R_7glhsum81dZxjTnYynPbZpHziZjeeHcXYsXaaMwkOlODsWa")
sbRsaJwk.Append("7I9xXDoRwbKgB719rrmI2oKr6N3Do9U0ajaHF-NKJnwgjMd2w9cjz3_-ky")
sbRsaJwk.Append("NlxAr2v4IKhGNpmM5iIgOS1VZnOZ68m6_pbLBSp3nssTdlqvd0tIiTHU\",")
sbRsaJwk.Append("\"qi\":\"IYd7DHOhrWvxkwPQsRM2tOgrjbcrfvtQJipd-DlcxyVuuM9sQLdgjVk2o")
sbRsaJwk.Append("y26F0EmpScGLq2MowX7fhd_QJQ3ydy5cY7YIBi87w93IKLEdfnbJtoOPLU")
sbRsaJwk.Append("W0ITrJReOgo1cq9SbsxYawBgfp_gh6A5603k2-ZQwVK0JKSHuLFkuQ3U\"")
sbRsaJwk.Append("}")
rsaKey = chilkat2.PrivateKey()
# Note: This example loads the RSA key from JWK format. Any format can be loaded
# into the private key object. (See the online reference documentation..)
success = rsaKey.LoadJwk(sbRsaJwk.GetAsString())
if (success != True):
print(rsaKey.LastErrorText)
sys.exit()
# ---------------------------------------------------
# Use the following ECC key loaded from JWK format.
sbEccJwk = chilkat2.StringBuilder()
sbEccJwk.Append("{\"kty\":\"EC\",")
sbEccJwk.Append("\"crv\":\"P-256\",")
sbEccJwk.Append("\"x\":\"f83OJ3D2xF1Bg8vub9tLe1gHMzV76e8Tus9uPHvRVEU\",")
sbEccJwk.Append("\"y\":\"x_FEzRu9m36HLN_tue659LNpXW6pCyStikYjKIWI5a0\",")
sbEccJwk.Append("\"d\":\"jpsQnnGQmL-YBIffH1136cspYG6-0iY7X1fCE9-E9LI\"")
sbEccJwk.Append("}")
eccKey = chilkat2.PrivateKey()
# Note: This example loads the ECDSA key from JWK format. Any format can be loaded
# into the private key object. (See the online reference documentation..)
success = eccKey.LoadJwk(sbEccJwk.GetAsString())
if (success != True):
print(eccKey.LastErrorText)
sys.exit()
# ---------------------------------------------------
# The HMAC key (in base64url format)
hmacKey = "AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow"
# ---------------------------------------------------
# Prepare the headers..
# RSASSA-PKCS1-v1_5 SHA-256
jwsProtHdr0 = chilkat2.JsonObject()
jwsProtHdr0.AppendString("alg","RS256")
jwsUnprotHdr0 = chilkat2.JsonObject()
jwsUnprotHdr0.AppendString("kid","myRsaKey")
# ECDSA using P-256 and SHA-256
jwsProtHdr1 = chilkat2.JsonObject()
jwsProtHdr1.AppendString("alg","ES256")
jwsUnprotHdr1 = chilkat2.JsonObject()
jwsUnprotHdr1.AppendString("kid","myEcKey")
# HMAC using SHA-256
jwsProtHdr2 = chilkat2.JsonObject()
jwsProtHdr2.AppendString("alg","HS256")
jwsUnprotHdr2 = chilkat2.JsonObject()
jwsUnprotHdr2.AppendString("kid","myMacKey")
# ---------------------------------------------------
# First set the JWS headers, keys, and payload, then we'll create the JWS...
jws = chilkat2.Jws()
jws.SetProtectedHeader(0,jwsProtHdr0)
jws.SetUnprotectedHeader(0,jwsUnprotHdr0)
jws.SetProtectedHeader(1,jwsProtHdr1)
jws.SetUnprotectedHeader(1,jwsUnprotHdr1)
jws.SetProtectedHeader(2,jwsProtHdr2)
jws.SetUnprotectedHeader(2,jwsUnprotHdr2)
jws.SetPrivateKey(0,rsaKey)
jws.SetPrivateKey(1,eccKey)
jws.SetMacKey(2,hmacKey,"base64url")
bIncludeBom = False
payloadStr = "In our village, folks say God crumbles up the old moon into stars."
jws.SetPayload(payloadStr,"utf-8",bIncludeBom)
# ---------------------------------------------------
# Create the JWS.
# Givent that multiple signatures will exist, only the general JSON serialization
# format is possible, and that is what will be produced.
jwsStr = jws.CreateJws()
if (jws.LastMethodSuccess != True):
print(jws.LastErrorText)
sys.exit()
# The jwsStr is contains JSON in the smallest possible size, which is a single line.
# To get in human-readable format, load into a Chilkat JSON object and emit..
json = chilkat2.JsonObject()
json.Load(jwsStr)
json.EmitCompact = False
print(json.Emit())
# Sample output:
# {
# "payload": "SW4gb3VyIHZpbGxhZ2UsIGZvbGtzIHNheSBHb2QgY3J1bWJsZXMgdXAgdGhlIG9sZCBtb29uIGludG8gc3RhcnMu",
# "signatures": [
# {
# "protected": "eyJhbGciOiJSUzI1NiJ9",
# "header": {
# "kid": "myRsaKey"
# },
# "signature": "B04c24gSnpVm1Z-_bemfyNMCpZm6Knj1yB-yzaIOvijsWfDgoF_mSJccTIbzapNgwJudnobr5iDOfZWiRR9iqCyDJLe5M1S40vFF7MFEI3JecYRgrRc6n1lTkYLMRyVq48BwbQlmKgPqmK9drun3agklsr0FmgNx65pfmcnlYdXsgwxf8WbgppefrlrMImp-98-dNtBcUL8ce1aOjbcyVFjGMCzpm3JerQqIzWQvEwBstnMEQle73KHcyx_nsTmlzY70CaydbRTsciOATL7WfiMwuX1q9Y2NIpTg3CbOTWKdwjh7iyfiAKQxNBaF2mApnqj9hjpf8GwR-CfxAzJtPg"
# },
# {
# "protected": "eyJhbGciOiJFUzI1NiJ9",
# "header": {
# "kid": "myEcKey"
# },
# "signature": "2cbugKq0ERaQMh01n2B-86EZFYleeMf8bsccaQMxzOxAg14PxfjR3IImvodTJYqkmfBJYW203etz2-7ZtJUOGw"
# },
# {
# "protected": "eyJhbGciOiJIUzI1NiJ9",
# "header": {
# "kid": "myMacKey"
# },
# "signature": "e7R9gjx0RsUNa3c7qd8k9mQGEhtcG8vsN1W7jbLb2MA"
# }
# ]
# }