pub const PREHASH_LENS: [usize; 4];Expand description
Digest widths ECDSA’s verify_prehash accepts.
Digest widths verify_prehash accepts, on every curve (for instance
crate::p256::EcdsaP256Sha256::verify_prehash): those of SHA-224, SHA-256,
SHA-384 and SHA-512, and of SHA-3 and SHA-512/t at the same widths.
SHA-1’s 20 bytes are not among them. This library implements no SHA-1 and registers it as excluded, and accepting its width here would make this the one way to verify a signature over it.