软件借用RSA增加注册功能

openssl rsautl -in hello.txt -out hello.sign -inkey rsa_public_key.pem -pubin -sign

A private key is needed for this operation

看来只能使用私钥进行签名。

1.generate private key.

openssl genrsa -out rsa_private_key.pem

-----BEGIN RSA PRIVATE KEY-----

MIICXgIBAAKBgQDhjXipVKSfMPCzJQnr9I3W96w4TS11WSKppUBSaT5zJF+sPJlW

Q1i438ONj9JiQKbTw8TPtxTMRQIC7zuPCrRzlc6JTGk82dYXcFJJZCksLggzjijr

gk1Bj7CpKcPdhVH/RBoS5jRxo2yYuKf/Mav+c4N2/s/oIlB+7RGO5hxHoQIDAQAB

AoGBAJN9diSMM+XhE9ShaL6BuWqTpGtglFRDCDaU193L8klKxMEVE1PkUBT8RZzB

KlqTWkPppT4Kwy/cBDe1BmZAIsSj98ej5/fiNqwFrwgsnseoCiDtUYfJ2ITUHsin

1TzjoOMqJFEnqjR2DbSVYkJvy8Fa13xONmL+Kklo0sm+pFNBAkEA+amdXEsG8Qfm

bv16M5Dyj0vWh/NbG36rx7KXouy/Me7mNRarUKCCQXaOyEKkcBAojO7xspSKe9+9

oaElCRs4mQJBAOdHLsjnSMdtbFPEX60XY93dzdDR9YbmxjYsJPkiavG/2gliHWLL

O3SP3jSfKA1Abp53qUROhaPsg2nFpFSkxEkCQDSXCwO+9iZdoKeuk0g7dyzCL92R

YJapFyxIrXJvZlLxXOK/9LRWKzn47Fi42QSWEsSlLJqOeaFgXwSl+jQx3LkCQQCt

+Ju2wFO8wBDmiic2OwwCTuCNHgLFMT8UbOx7A2rS4vAOcuGL+TiGG9qYVsh3/2m2

hmirWy2n+zd3DxboHPERAkEAoMRXmOoOX/hhdxifIrEjDVoumhd0HEUVJZPm49jX

fjiYjb7CilSVpQUAh4OuLaa4Hj46f+dUh1RYviNTBJKC3w==

-----END RSA PRIVATE KEY-----

2.generate public key.

openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem

-----BEGIN PUBLIC KEY-----

MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDhjXipVKSfMPCzJQnr9I3W96w4

TS11WSKppUBSaT5zJF+sPJlWQ1i438ONj9JiQKbTw8TPtxTMRQIC7zuPCrRzlc6J

TGk82dYXcFJJZCksLggzjijrgk1Bj7CpKcPdhVH/RBoS5jRxo2yYuKf/Mav+c4N2

/s/oIlB+7RGO5hxHoQIDAQAB

-----END PUBLIC KEY-----

3.prepare the original device machine number.

cat machine_no_original.txt

00:00:00:00:00:00C8:0A:A9:2F:BE:7B00:26:C7:24:28:F4

4.use public key to encrypt the original machine no in user side.

openssl rsautl -in machine_no_original.txt -out machine_no_pubenc.txt -inkey rsa_public_key.pem -pubin -encrypt

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