(Chilkat2-Python) RSASSA-PSS Algorithm with SHA256 Hashing

RSA encrypt a SHA256 hash with OAEP padding.

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

import sys
import chilkat2

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

privkey = chilkat2.PrivateKey()

# Load the private key object from a PEM file.
# (To load from a PEM string, call LoadPem instead.)
success = privkey.LoadPemFile("somePath/myPrivateKey.pem")
if (success != True):
    print(privkey.LastErrorText)
    sys.exit()

rsa = chilkat2.Rsa()
# Use RSA-PSS by setting OaepPadding = True
rsa.OaepPadding = True
# Use SHA256
rsa.OaepHash = "SHA-256"

rsa.ImportPrivateKeyObj(privkey)

# Generate a base64 signature.
rsa.EncodingMode = "base64"

sigStr = rsa.SignStringENC("String to be signed","SHA-256")
if (rsa.LastMethodSuccess != True):
    print(rsa.LastErrorText)
    sys.exit()

print("Signature: " + sigStr)