Wednesday, December 2, 2020

Signature Verification using OpenSSL

generate RSA Private Key

 #openssl genrsa -out private.pem 2048


Generate RSA public Key from Private Key

#openssl rsa -in private.pem -outform PEM -pubout -out public.pem


Sing Operation using RSA Private Key

#openssl sha1 -sign private.pem test > sig.bin

Verify Operation using RSA Public Key

#openssl sha1 -verify public.pem -signature sig.bin test


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