Cryptography

AWS KMS

• How to verify AWS KMS asymmetric key signatures locally with OpenSSL
• Combining encryption and signing with AWS KMS asymmetric keys
• How to protect HMACs inside AWS KMS
• AWS CLI: KMS

JWT

• How to create a Json Web Token (JWT) using OpenSSL shell commands?

Encoding

• How Base64 Encoding Works

Hashing

• Understanding Hashing
• What Is HMAC And How Does It Secure File Transfers?
• What Is A Key Exchange?

Sign/Verify

• How to Create SHA256 RSA Signature Using Java

Encrypt/Decrypt