The following table lists the SSL alert codes (from ssl.h) that correspond to DigiCert® TrustCore SDK error codes.

Alert Definition	Value
`SSL_ALERT_CLOSE_NOTIFY`	0
`SSL_ALERT_UNEXPECTED_MESSAGE`	10
`SSL_ALERT_BAD_RECORD_MAC`	20
`SSL_ALERT_DECRYPTION_FAILED`	21
`SSL_ALERT_RECORD_OVERFLOW`	22
`SSL_ALERT_DECOMPRESSION_FAILURE`	30
`SSL_ALERT_HANDSHAKE_FAILURE`	40
`SSL_ALERT_NO_CERTIFICATE`	41
`SSL_ALERT_BAD_CERTIFICATE`	42
`SSL_ALERT_UNSUPPORTED_CERTIFICATE`	43
`SSL_ALERT_CERTIFICATE_REVOKED`	44
`SSL_ALERT_CERTIFICATE_EXPIRED`	45
`SSL_ALERT_CERTIFICATE_UNKNOWN`	46
`SSL_ALERT_ILLEGAL_PARAMETER`	47
`SSL_ALERT_UNKNOWN_CA`	48
`SSL_ALERT_ACCESS_DENIED`	49
`SSL_ALERT_DECODE_ERROR`	50
`SSL_ALERT_DECRYPT_ERROR`	51
`SSL_ALERT_EXPORT_RESTRICTION`	60
`SSL_ALERT_PROTOCOL_VERSION`	70
`SSL_ALERT_INSUFFICIENT_SECURITY`	71
`SSL_ALERT_INTERNAL_ERROR`	80
`SSL_ALERT_INAPPROPRIATE_FALLBACK`	86
`SSL_ALERT_USER_CANCELED`	90
`SSL_ALERT_NO_RENEGOTIATION`	100
`SSL_ALERT_UNSUPPORTED_EXTENSION`	110
`SSL_ALERT_CERTIFICATE_UNOBTAINABLE`	111
`SSL_ALERT_UNRECOGNIZED_NAME`	112
`SSL_ALERT_BAD_CERTIFICATE_STATUS_RESPONSE`	113
`SSL_ALERT_BAD_CERTIFICATE_HASH_VALUE`	114
`SSL_ALERT_INNER_APPLICATION_FAILURE`	208
`SSL_ALERT_INNER_APPLICATION_VERIFICATION`	209