JWT support

This crate provides support for JWT tokens. The JWT signing and verification is done using the jsonwebtoken crate, while the key loading is performed here via the rsa/p256 crates.

Key types

HS256: symmetric key RS256: asymmetric key (RSA 2048+ + SHA256) ES256: asymmetric key (P-256 + SHA256)

Supported key formats

HS256: raw data RS256: PKCS1/PKCS8 PEM ES256: SEC1/PKCS8 PEM