validationOpenSSL 0.9.8a中的RSA签名
我正在开发基于OpenSSL 0.9.8a API的应用程序，我需要使用RSA公钥pubkeyvalidationRSA签名（4096位RSA密钥）。
这是我的代码：
const EVP_MD* md = EVP_get_digestbyname("SHA512"); if (!md) { return false; } if(EVP_DigestInit_ex(ctx, md, NULL)<=0) { return false; } if(EVP_DigestVerifyInit( ctx, NULL, md, NULL, pubKey)<=0) { return false; } if (EVP_DigestUpdate(ctx, Msg, MsgLen) <= 0) { return false; } int res = EVP_DigestFinal_ex(ctx, MsgHash, &MsgHashLen);
问题是EVP_DigestVerifyInit函数未在openssl0.9.8a中定义。
是否有其他方法可以在早于OpenSSL 1.0.0版本的版本中validationRSA签名？
以下是我的输入：/ * Text_message保存到“sample.txt”文件（文本以最后一个字符’\ n’结尾）* /
My secret message.\n
/ *生成RSA公钥* /
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAl44E9YikPF9RzjAWxZXO /GaJVCVdQOjp6pmSgL38WvS7glqMwQFwBzSqAiuvVkf3j9C+9Cgs2pypamfDBabC CZX9+c4oE9zxW2wz0yT5dKL+lUuvIeKfDTMvttjHPtMn23S4ASqLZFAeJX0bCd9H 6l2/8KBjV+uinVlwvKGjXbE5ds2/8S2gei17WvdTb2ypvAUhdw7dc8IaSosG5lOa EycLN6XKq0z8UX336PiuY0FzLa2B3FOOc6TuPpjkRuf73YKt/Xtm+78ztkfwHLUs v+EX0TJpB8jE4DISiogNrceOPOnFipppxau2t0VjLivmYTnvSbJzIbOmutFGX8HV 17m3tUpATCdVDuMJ3ouCWOjIJSvw60gizOUHqmMBX+qG95mQ1h3QGP7SExYDKgfp VpIEAVsnv+CvZTGOEIYcO9ROI2FM6fBgDxkHAdWFCkBVK6o5JxYmsHAXOfFVh+FD K/pxCBuQINn5B6xanBJYmtpbtq7D0UcvVn6HP7w/9X/pvdU90+KMx1p5AZ6WFeNB BWLp4whPnU6VEFo+UwXyrCWPIlq3vAz/TjxOXW0Plw+xtsoyw15C8+mS9/4x9XyV O9v4vlvsRL46T/h4axVsbf2B5w4JC4VoNTuomObecQ0s3v+v54ZYJNsp/tLMa02n +N9hImCjf+Y6HF8s6BKQ1B0CAwEAAQ== -----END PUBLIC KEY-----
/ * base64编码的Signatue保存到“PKGC_sample_singed.enc64”文件* /
NIInzKblrnRZ3olbVUSJbYQhnn9VvDaadcsLNLAVRS/2rryzQr8FVo7ty4oQYqQT KwRkwVakCxqs+Dg+wHCHQ+K6D6d43nGodC0kNgD1++vYeorUbpK7QNdMu+73g5pW TiYCicKp6DfeYGWPLI0aYivQJqwNMxqrFd/CdNWhIap4f4fZb5WHcszqlsLCqtrr qVLP3fXVlHzfiA6jqx2GVE5m43iXLB2H3DwXmjS8eX0veRTlcU5lOtoH/yAGRxmL p3Mg/s3LSdiAL4Gki4nSORWVmsJ0IwtRttLAl5wYN2VAWz8n21wjCTcr9f2k7BQy /W74zug+8rbnejFoS50YOKB27PKUTcv0Qn5tWYrk/BK4FPovXyj+tPHZ+jIvAdvX 7UbGl1fkyylb2C6DUxlPPZRxjiaoA4xKwaSFrwcMQnVFphE/LuyQ5aBQZVtAI8Sj K4zws2BjbCUh+JWzJawCZmIt8IEq1IavW/t/YaMIqR4IMMnHghZGhN8Hm34UOIwB uyTx1bX/AlKIs7h2ibKSL5JKunQ2IbLqvPeyhjLoFdqiv57JsIzA154xFyl1uXlj Y32kmtn2LO8SsJcJmDFaD63sj3+WbTR+BRw0QZf9lE94Fa/MPooF0I49aNIx59Wa 2uRR9r0oBgMkpNH+kNmCXcRdPyWIbILGZShkKMcp0Oo=
/ *以下步骤描述用于签名然后validation签名的openssl命令行* /
/ * *****第1步：签署消息***** * /
/ *使用之前生成的RSA私钥来唱出消息* /
dgst -sha512 -sign '/PATH...private_key.pem' -out '/PATH.../PKGC_sample_signed.binr' '/PATH.../sample.txt'
/ * Base64编码签名* /
base64 -in '/PATH.../PKGC_sample_signed.binr' -out '/PATH.../PKGC_sample_singed.enc64'
/ * *****第2步：签名validation***** * /
/ * Base64解码签名* /
base64 -d -in '/PATH.../PKGC_sample_singed.enc64' -out '/PATH.../PKGC_sample_signed.decod64'
/ *使用公钥validation签名* /
dgst -sha512 -verify '/PATH.../public_key.pem' -signature '/PATH.../PKGC_sample_signed.decod64' '/PATH.../sample.txt'
==>我收到validation确定。