Table of Contents
2 证书问题
OpenSSL与CRL一起使用，对于证书链中的某些CA，其CRL不在“TLSCRLFile”中
在mbed TLS (PolarSSL) 和 OpenSSL 对等（peers）情形TLS服务器日志:
failed to accept an incoming connection: from 127.0.0.1: TLS handshake with 127.0.0.1 returned error code 1: \
file s3_srvr.c line 3251: error:14089086: SSL routines:ssl3_get_client_certificate:certificate verify failed: \
TLS write fatal alert "unknown CA"Copy
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在GnuTLS 对等（peer）情形TLS服务器日志:
failed to accept an incoming connection: from 127.0.0.1: TLS handshake with 127.0.0.1 returned error code 1: \
file rsa_pk1.c line 103: error:0407006A: rsa routines:RSA_padding_check_PKCS1_type_1:\
block type is not 01 file rsa_eay.c line 705: error:04067072: rsa routines:RSA_EAY_PUBLIC_DECRYPT:paddinCopy
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服务器运行期间CRL过期或到期
OpenSSL 在服务器端日志:
- 过期前:
cannot connect to proxy "proxy-openssl-1.0.1e": TCP successful, cannot establish TLS to [[127.0.0.1]:20004]:\
SSL_connect() returned SSL_ERROR_SSL: file s3_clnt.c line 1253: error:14090086:\
SSL routines:ssl3_get_server_certificate:certificate verify failed:\
TLS write fatal alert "certificate revoked"Copy
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- 过期后:
cannot connect to proxy "proxy-openssl-1.0.1e": TCP successful, cannot establish TLS to [[127.0.0.1]:20004]:\
SSL_connect() returned SSL_ERROR_SSL: file s3_clnt.c line 1253: error:14090086:\
SSL routines:ssl3_get_server_certificate:certificate verify failed:\
TLS write fatal alert "certificate expired"Copy
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需要指出的是，有效的CRL撤销证书时，被告知为“证书撤销”。 当CRL到期时，错误消息将更改为“证书已过期”，这是非常容易误导的。
GnuTLS 在服务器日志:
- 过期前或过期后:
cannot connect to proxy "proxy-openssl-1.0.1e": TCP successful, cannot establish TLS to [[127.0.0.1]:20004]:\
invalid peer certificate: The certificate is NOT trusted. The certificate chain is revoked.Copy
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mbed TLS (PolarSSL), in server log:
- 过期前:
cannot connect to proxy "proxy-openssl-1.0.1e": TCP successful, cannot establish TLS to [[127.0.0.1]:20004]:\
invalid peer certificate: revokedCopy
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- 过期后:
cannot connect to proxy "proxy-openssl-1.0.1e": TCP successful, cannot establish TLS to [[127.0.0.1]:20004]:\
invalid peer certificate: revoked, CRL expiredCopy
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Self-signed certificate, unknown CA
OpenSSL, in log:
error:'self signed certificate: SSL_connect() set result code to SSL_ERROR_SSL: file ../ssl/statem/statem_clnt.c\
line 1924: error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed:\
TLS write fatal alert "unknown CA"'Copy
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This was observed when server certificate by mistake had the same Issuer and Subject string, although it was signed by CA. Issuer and Subject are equal in top-level CA certificate, but they cannot be equal in server certificate. (The same applies to proxy and agent certificates.)