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 verification only with PKCS#1.5 padding
Insert the Public Key you received (PEM encoding):
Enter a message to verify:
Enter the signature to verify:
Instructions:
1.: insert the received public key and press the "Import key" button
2.: if the public key is valid the "Verify" button is enabled
3.: enter the plaintext message
4.: enter the signature
5.: press the "Verify button"
6.: receive the verification status
verification status:
Technical note: this program uses the RSA signature algorithm with a 2048 bit long key and PKCS1-5 signature padding.