需要帮助解码以下base64 MerkleTreeLeaf字符串。
MerkleTreeLeaf结构是一个复合数据结构,包含时间戳和数字证书。
该结构被编码为Base64编码的字节字符串。在这个字节字符串中,有一个实际的证书以DER格式编码。
我正在寻找一个PHP解决方案,以提取DER编码的证书。
以下是Base64编码字符串的样例:
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
如果我使用在线base64转换工具,它会显示一些细节,但显然是不可读的。如果我可以提取DER编码的证书,那么我就可以使用openssl来解析它。