SSL_GET_VERIFY_RESULT(3) | Library Functions Manual | SSL_GET_VERIFY_RESULT(3)

# NAME

`SSL_get_verify_result` — get result of peer certificate verification

# SYNOPSIS

library “libssl” libcrypto
`#include <openssl/ssl.h>`

long
`SSL_get_verify_result`(const SSL *ssl);

# DESCRIPTION

`SSL_get_verify_result`() returns the result of the verification of the X509 certificate presented by the peer, if any.

`SSL_get_verify_result`() can only return one error code while the verification of a certificate can fail because of many reasons at the same time. Only the last verification error that occurred during the processing is available from `SSL_get_verify_result`().

The verification result is part of the established session and is restored when a session is reused.

# RETURN VALUES

The following return values can currently occur:

`X509_V_OK`
  The verification succeeded or no peer certificate was presented.
Any other value
  Documented in openssl(1).

# SEE ALSO

openssl(1), ssl(3), SSL_CTX_set_verify(3), SSL_get0_peername(3), SSL_get_peer_certificate(3), SSL_set_verify_result(3)

# HISTORY

`SSL_get_verify_result`() first appeared in SSLeay 0.6.1 and has been available since OpenBSD 2.4.

# BUGS

If no peer certificate was presented, the returned result code is `X509_V_OK`. This is because no verification error occurred; however, it does not indicate success. `SSL_get_verify_result`() is only useful in connection with SSL_get_peer_certificate(3).

June 8, 2025 | Debian