(Chilkat2-Python) RSA Sign using Base64 Private Key

Signs a string using a non-encrypted RSA private key in base64 encoding. Returns the RSA signature as a base64 string.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS

import sys
import chilkat2

# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

privKey = chilkat2.PrivateKey()

sbPem = chilkat2.StringBuilder()
sbPem.AppendLine("-----BEGIN RSA PRIVATE KEY-----",True)
sbPem.AppendLine("MIIC .... j5A==",True)
sbPem.AppendLine("-----END RSA PRIVATE KEY-----",True)

success = privKey.LoadPem(sbPem.GetAsString())
if (success != True):
    print(privKey.LastErrorText)
    sys.exit()

rsa = chilkat2.Rsa()

success = rsa.ImportPrivateKeyObj(privKey)
if (success != True):
    print(rsa.LastErrorText)
    sys.exit()

rsa.EncodingMode = "base64"
strSigned = rsa.OpenSslSignStringENC("12345678")
print(strSigned)

strOriginal = rsa.OpenSslVerifyStringENC(strSigned)
print(strOriginal)