Chilkat2-Python

RSASSA-PSS Algorithm with SHA256 Hashing

See more RSA Examples

RSA encrypt a SHA256 hash with OAEP padding. Chilkat2-Python

import sys
import chilkat2

success = False

# 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 == False):
    print(privkey.LastErrorText)
    sys.exit()

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

rsa.UsePrivateKey(privkey)

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

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

print("Signature: " + sigStr)