Relative Content

Tag Archive for openssl

OpenSSL generates a key, signs a file, then the file fails the verification. Why?

openssl genpkey -algorithm RSA -out private_key.pem …..+..+++++++++++++++++++++++++++++++++++++++*..+++++++++++++++++++++++++++++++++++++++*……………+……+.+…..+……+…+…….+…+……………+..+……………….+…+..+.+………………+……+…+…..+…+………….+..+…++++++ .+…+..+++++++++++++++++++++++++++++++++++++++*………..+….+………..+.+…..+…+…………+…+……+.+..+.+……+……..+…+…+++++++++++++++++++++++++++++++++++++++*……..+..+…….+..+….+…..+….+………..+.+…..+.+…+……+………..+…………………….+…..+…….+…+…..+….+…..+…+……+….+……+…..+………++++++ openssl rsa -pubout -in private_key.pem -out public_key.pem writing RSA key openssl dgst -sha256 -binary -out hash.bin server/main_feed.txt openssl pkeyutl -sign -inkey private_key.pem -keyform PEM -in hash.bin -out server/main_feed.sig256 openssl dgst -sha256 -verify public_key.pem -signature server/main_feed.sig256 hash.bin Verification failure 8066D85CC37F0000:error:02000068:rsa routines:ossl_rsa_verify:bad signature:../crypto/rsa/rsa_sign.c:426: 8066D85CC37F0000:error:1C880004:Provider routines:rsa_verify:RSA lib:../providers/implementations/signature/rsa_sig.c:785: I’m honestly not […]