hex2bn在openSSL中的神奇分段故障EN###1、下载openssl源码 https://www.openssl.org/source/ ###2...
问BN_hex2bn和BN_bn2hex的结果不匹配吗？EN今天同事反馈了一个问题，之前看到没有太在意，虽然无伤...
OpenSSL是一种开放源码的SSL实现,用来实现网络通信的高强度加密,现在被广泛地用于各种网络应用程序中。 OpenSSL 1.0.2及更早版本、1.0.1及更早版本在函数BN_hex2bn/BN_dec2bn的实现上存在安全漏洞,可导致空指针间接引用及堆破坏等问题。 漏洞来源: Guido Vranken 解决方案: 临时解决方法: 如果不能及时安装补丁,...
ERR_error_string_n(err, errmsg, sizeof errmsg); fprintf(stderr, "BN_hex2bn(): %s\n", errmsg); exit(1); } dec = BN_bn2dec(b1); printf("0x%s = %s\n", hex, dec); OPENSSL_free(dec); return 0; } When running, it outputs like this: BN_hex2bn(): error:00000000:lib(0)...
I'm new to OpenSSL and have a problem when trying BIGNUM usage. The function ERR_get_error() returned 0 when BN_hex2bn() failed: The error stack is used for errors which are useful to return to the caller and isn't used much in 'leaf nodes' (i.e. things which are low level ...
In the BN_hex2bn function the number of hex digits is calculated using an int value |i|. Later |bn_expand| is called with a value of |i * 4|. For large values of |i| this can result in |bn_expand| not allocating any memory because |i * 4| is negative. This leaves ret->d...
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>> function ERR_get_error() returned 0 when BN_hex2bn() failed: >> > > The error stack is used for errors which are useful to return to the caller > and isn't used much in 'leaf nodes' (i.e. things which are low level ...
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