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jiahut/gen pub key from pri key

Created July 9, 2016 17:34
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gen pub key from pri key
#生成 RSA 私钥（传统格式的）
openssl genrsa -out rsa_private_key.pem 1024
#将传统格式的私钥转换成 PKCS#8 格式的
openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM -nocrypt
#生成 RSA 公钥
openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem
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