object

`jwt_openssl`

OpenSSL-backed JWS signature verification helpers.

Availability:

logtalk_load(jwt(loader))

Author: Paulo Moura
Version: 1:0:0
Date: 2026-06-26

Compilation flags:

static, context_switching_calls

Uses:

crypto
jwt_der
list
os
user

Remarks:

(none)

Inherited public predicates:

(none)

Public predicates 

Verifies a JWS signing input and signature using OpenSSL and a PEM public key.

Compilation flags:

static

Template:

verify(Algorithm,PEM,SigningInput,Signature,Options)

Mode and number of proofs:

verify(+atom,+atom,+atom,+list(byte),+list(compound)) - zero_or_one_or_error

Exceptions:

The OpenSSL executable does not exist:

existence_error(os_command,Executable)

Signature is not a 64-byte raw ES256 signature:

domain_error(jwt_es256_signature,Signature)

(no local declarations; see entity ancestors if any)

(no local declarations; see entity ancestors if any)

(none)