Ruby Requires Chilkat v11.0.0+

RSASSA-PSS Algorithm with SHA256 Hashing

See more RSA Examples

RSA encrypt a SHA256 hash with OAEP padding. Ruby

require 'chilkat'

success = false

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

privkey = Chilkat::CkPrivateKey.new()

#  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() + "\n";
    exit
end

rsa = Chilkat::CkRsa.new()
#  Use RSA-PSS by setting PkcsPadding = false
rsa.put_PkcsPadding(false)
#  Use SHA256
rsa.put_OaepHash("SHA-256")

rsa.UsePrivateKey(privkey)

#  Generate a base64 signature.
rsa.put_EncodingMode("base64")

sigStr = rsa.signStringENC("String to be signed","SHA-256")
if (rsa.get_LastMethodSuccess() == false)
    print rsa.lastErrorText() + "\n";
    exit
end

print "Signature: " + sigStr + "\n";