Important note: this program is doing what it promises but the programming itself is of very poor quality and for demonstration purposes only. Never ever use this program as source for your own programs because there are a lot of conversions to get it run.
Get more information about this program on
my webpage RSA string signature with PKCS#1.5 padding
Insert your own Private Key (in PEM encoding):
Enter a message to sign:
Instructions:
1.: insert your own private and press the "Import key" button
2.: if the private key is valid the "Sign" button is enabled
3.: enter the message to sign
4.: press the "Sign" button
5.: receive the signature in Base64 encoding
signature (in Base64 encoding):
Technical note: this program uses the RSA signature algorithm with a 2048 bit long key and PKCS1-5 signature padding.