.. index:: single: jwt_openssl .. _jwt_openssl/0:

.. rst-class:: right

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: | :ref:`crypto <crypto/0>` | :ref:`jwt_der <jwt_der/0>` | :ref:`list <list/0>` | :ref:`os <os/0>` | :ref:`user <user/0>`

| Remarks: | (none)

| Inherited public predicates: | (none)

.. contents:: :local: :backlinks: top

Public predicates

.. index:: verify/5 .. _jwt_openssl/0::verify/5:

verify/5 ^^^^^^^^^^^^

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)

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Protected predicates

(no local declarations; see entity ancestors if any)

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)