-1
votes
0answers
18 views

Digitally sign and verify a file using private/public keys and OpenSSL API [on hold]

I am signing a file using a private key and want to verify it using a public key. Until now I am only able to verify it with the privatekey/certificate file. This is how I generate the keys: ...
1
vote
1answer
179 views

Certificate signature with SHA-1 and RSA: where do 1888 bits come from?

Plenty of X.509 Certificates use "PKCS#1 SHA1 with RSA encryption" as the Certificate Signature Algorithm for generating a 2048-bit signature. The SHA-1 hash function generates a hash value of 160 ...
2
votes
1answer
79 views

Usability of padding scheme in blinded RSA signature?

In Wikipedia's article on Blind signature, in the section Dangers of blind signing which describes RSA blinding attack one reads the following This attack works because in this blind signature ...