RSA Digital Signature Scheme with Appendix

Let’s learn about the signing and verification process for RSA's digital signature scheme with appendix and what makes RSA special.

Under this scheme, we require all signers and verifiers to agree on a particular hash function. In the following, we’ll deliberately use the terms ‘encryption’ and ‘decryption’ in quotation marks because, while they refer to applying the RSA encryption and decryption algorithms, they don’t refer to encryption and decryption of data for confidentiality purposes.

The signing process

The following figure illustrates the process of creating an RSA digital signature with appendix:

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