Schannel Error Codes for TLS and SSL Alerts

Schannel returns the following error messages when the corresponding alert is received from the Transport Layer Security (TLS) or Secure Sockets Layer (SSL) protocols. The error messages are defined in Winerror.h.

TLS or SSL alert	Schannel error code
SSL3_ALERT_UNEXPECTED_MESSAGE 10	SEC_E_ILLEGAL_MESSAGE 0x80090326
TLS1_ALERT_BAD_RECORD_MAC 20	SEC_E_MESSAGE_ALTERED 0x8009030F
TLS1_ALERT_DECRYPTION_FAILED 21	SEC_E_DECRYPT_FAILURE 0x80090330
TLS1_ALERT_RECORD_OVERFLOW 22	SEC_E_ILLEGAL_MESSAGE 0x80090326
SSL3_ALERT_DECOMPRESSION_FAIL 30	SEC_E_MESSAGE_ALTERED 0x8009030F
SSL3_ALERT_HANDSHAKE_FAILURE 40	SEC_E_ILLEGAL_MESSAGE 0x80090326
TLS1_ALERT_BAD_CERTIFICATE 42	SEC_E_CERT_UNKNOWN 0x80090327
TLS1_ALERT_UNSUPPORTED_CERT 43	SEC_E_CERT_UNKNOWN 0x80090327
TLS1_ALERT_CERTIFICATE_REVOKED 44	CRYPT_E_REVOKED 0x80092010
TLS1_ALERT_CERTIFICATE_EXPIRED 45	SEC_E_CERT_EXPIRED 0x80090328
TLS1_ALERT_CERTIFICATE_UNKNOWN 46	SEC_E_CERT_UNKNOWN 0x80090327
SSL3_ALERT_ILLEGAL_PARAMETER	SEC_E_ILLEGAL_MESSAGE 0x80090326
TLS1_ALERT_UNKNOWN_CA 48	SEC_E_UNTRUSTED_ROOT 0x80090325
TLS1_ALERT_ACCESS_DENIED 49	SEC_E_LOGON_DENIED 0x8009030C
TLS1_ALERT_DECODE_ERROR 50	SEC_E_ILLEGAL_MESSAGE 0x80090326
TLS1_ALERT_DECRYPT_ERROR 51	SEC_E_DECRYPT_FAILURE 0x80090330
TLS1_ALERT_EXPORT_RESTRICTION 60	SEC_E_ILLEGAL_MESSAGE 0x80090326
TLS1_ALERT_PROTOCOL_VERSION 70	SEC_E_UNSUPPORTED_FUNCTION 0x80090302
TLS1_ALERT_INSUFFIENT_SECURITY 71	SEC_E_ALGORITHM_MISMATCH 0x80090331
TLS1_ALERT_INTERNAL_ERROR 80	SEC_E_INTERNAL_ERROR 0x80090304
TLS1_ALERT_USER_CANCELED 90	SEC_E_UNFINISHED_CONTEXT_DELETED 0x80090333
TLS1_ALERT_NO_RENEGOTIATION 100	SEC_E_ILLEGAL_MESSAGE 0x80090326
TLS1_ALERT_UNSUPPORTED_EXT 110	SEC_E_ILLEGAL_MESSAGE 0x80090326
Default	SEC_E_ILLEGAL_MESSAGE 0x80090326