PKCS 1 defines the mathematical properties and format of RSA Public Keys and Private Keys (ASN.1-encoded in clear-text), and the basic algorithms and encoding/padding schemes for performing RSA encryption, decryption, and producing and verifying signatures.
More Information#There might be more information for this subject on one of the following:
- FIPS 186
- Public-Key Cryptography Standards
- RFC 3447
- RFC 8017
- RSA Digital Signature Algorithm
- Verifying Certificate Signatures