ecdsa-with-SHA384 openssl代码示例
时间: 2024-10-23 17:11:18 浏览: 98
ECDSA (Elliptic Curve Digital Signature Algorithm) 使用椭圆曲线加密算法来进行数字签名,SHA384 是一种哈希函数,用于生成消息摘要。在 OpenSSL 中,创建 ECDSA 签名通常涉及到以下几个步骤:
```bash
# 导入私钥和公钥
openssl ecparam -genkey -name secp384r1 -out private.key
openssl ec -in private.key -pubout -out public.key
# 生成随机数据和要签名的消息
echo "Your message here" > message.txt
data=$(cat message.txt)
# 使用私钥进行签名
openssl ecdsa -sign -text -in private.key -out signature.bin -signer private.key -digest SHA384 -outform DER -in data
# 验证签名
openssl dgst -sha384 -verify public.key -signature signature.bin -message data
```
在这个例子中,`openssl ecparam`命令生成了名为secp384r1的椭圆曲线密钥对,`ec`命令用于提取公钥。接着,我们创建了一个消息文件并读取内容。使用`openssl ecdsa -sign`命令生成签名,指定SHA384哈希函数,并保存为DER格式。最后,通过`openssl dgst -verify`验证原始消息是否与签名匹配。
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