(Chilkat2-Python) RSA Sign with PKCS8 Encrypted Key
Demonstrates how to load a private key from an encrypted PKCS8 file and create an RSA digital signature.Note: This example requires Chilkat v11.0.0 or greater.
import sys
import chilkat2
success = False
# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
pkey = chilkat2.PrivateKey()
# Load the private key from an RSA PEM file:
success = pkey.LoadPkcs8EncryptedFile("privateKey.key","myPassword")
rsa = chilkat2.Rsa()
# Import the private key into the RSA object:
success = rsa.UsePrivateKey(pkey)
if (success == False):
print(rsa.LastErrorText)
sys.exit()
# Return the signature in hex
rsa.EncodingMode = "hex"
strData = "This is the string to be signed."
# Sign the string using the sha-1 hash algorithm.
# Other valid choices are "md2", "sha256", "sha384", "sha512", and "md5".
hexSig = rsa.SignStringENC(strData,"sha-1")
print(hexSig)
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