Re: [openssl-users] Openssl api for signature verification using digest

2018-08-28 Thread Viktor Dukhovni
> On Aug 29, 2018, at 1:05 AM, Linta Maria wrote: > > Still its not working. The code is working correctly. The real problem is that the PEM format 2048-bit RSA key you posted: > BEGIN PUBLIC KEY- > MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzMjyWZfVfBpmNKmIm9HH > FnrhDLZaCmQvZz57uJH

[openssl-users] Openssl api for signature verification using digest

2018-08-28 Thread Linta Maria
Thanks Viktor for the help…. Please find below the input format. Still its not working. > On Aug 28, 2018, at 7:08 AM, Linta Maria wrote: > > I have used below code, but it’s not working. Please help me to get the correct API. > > /* > * NB: assumes verify_key, sig, siglen md and mdlen are a

Re: [openssl-users] Openssl api for signature verification using digest

2018-08-28 Thread Viktor Dukhovni
[ Please post plain text, not HTML ] > On Aug 28, 2018, at 7:08 AM, Linta Maria wrote: > > I have used below code, but it’s not working. Please help me to get the > correct API. > > /* > * NB: assumes verify_key, sig, siglen md and mdlen are already set up > * and that verify_key is an RSA p

Re: [openssl-users] Openssl api for signature verification using digest

2018-08-28 Thread Linta Maria
Thanks Nicola for the updates. But I need to verify signature with hashed data or digest not with original message. Is there any openssl API to implement that? On Tue 28 Aug, 2018, 5:18 PM Nicola, wrote: > Hi! > > I would suggest using the newer `EVP_DigestSign` interface. > > You could find mor

Re: [openssl-users] Openssl api for signature verification using digest

2018-08-28 Thread Nicola
Hi! I would suggest using the newer `EVP_DigestSign` interface. You could find more documentation about it here: https://wiki.openssl.org/index.php/EVP_Signing_and_Verifying Here is the relevant manpage: https://www.openssl.org/docs/man1.1.1/man3/EVP_DigestVerifyInit.html Best regards, Nicola

[openssl-users] Openssl api for signature verification using digest

2018-08-28 Thread Linta Maria
Hi All, I have started using open ssl recently for implementing some cryptographic operation. Now I want to implement signature verification by taking Signature and hashed data as input, but I am not able to get the proper API. I have used below code, but it’s not working. Please help me to