(CkPython) RSASSA-PSS Algorithm with SHA256 Hashing
RSA encrypt a SHA256 hash with OAEP padding.
import sys
import chilkat
# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
privkey = chilkat.CkPrivateKey()
# 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 = chilkat.CkRsa()
# Use RSA-PSS by setting OaepPadding = True
rsa.put_OaepPadding(True)
# Use SHA256
rsa.put_OaepHash("SHA-256")
rsa.ImportPrivateKeyObj(privkey)
# Generate a base64 signature.
rsa.put_EncodingMode("base64")
sigStr = rsa.signStringENC("String to be signed","SHA-256")
if (rsa.get_LastMethodSuccess() != True):
print(rsa.lastErrorText())
sys.exit()
print("Signature: " + sigStr)
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