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9h
answered Where is Signaturevalue in Certificate?
13h
revised Why can ssh-keygen export a public key in PEM PKCS8 format?
added PEM explanation
13h
answered Why can ssh-keygen export a public key in PEM PKCS8 format?
14h
comment Why can ssh-keygen export a public key in PEM PKCS8 format?
They probably meant either a SubjectPublicKey as specified in the X.509 certificate format, the PKCS#1 format or the wrote "public" instead of "private". And indeed: "Public-Key Cryptography Standards (PKCS) #8: Private-Key Information Syntax Specification Version 1.2". I currently haven't got a Linux machine running, could you base64 encode the output of -m PKCS8 and include it in your question?
15h
revised Use of the IV for the CBC Block Cipher in TLS1.2
added 336 characters in body
15h
revised Use of the IV for the CBC Block Cipher in TLS1.2
edited IV in title and padding, pointed to correct section of RFC
15h
answered Use of the IV for the CBC Block Cipher in TLS1.2
1d
comment Verify a RSA signature using only RSA encryption
Kind of yes. "encrypt = pad then modular exponentiation" for encrypt. And afterwards the I2OSP method is used to make the ciphertext as long as the modulus in bytes. Obviously the verification should check the padding and the hash value as well. The padding methods for signature generation and encryption differ though. See RFC 3447
1d
comment Test for randomness - randtests - fails
I've removed the compilation issue from the question, that's off topic here.
1d
revised Test for randomness - randtests - fails
deleted 251 characters in body; edited title
1d
revised Verify a RSA signature using only RSA encryption
added 490 characters in body
1d
answered Verify a RSA signature using only RSA encryption
1d
answered AES decryption vs encryption speed
1d
answered OpenSSL ECDH key exchange mechanism
1d
comment Saving energy when using public key algorithms by using block ciphers?
RSA, DH and El Gamal are not security protocols and they don't use block ciphers. They can be compared with block ciphers or they can be used together with a block cipher in a hybrid cryptosystem.
2d
comment What are the constraints on using GCM with a tag size of 96 and 128 bits
This is the kind of spam I'm looking for, although I haven't extracted the answer yet :)
Aug
31
comment Is there really any way to nullify or avoid MITM attacks?
@VTCAKAVSMoACE No, a trust system needs to be in place. But a MITM can still succeed if the protocol and algorithms are chosen poorly.
Aug
31
comment Is there really any way to nullify or avoid MITM attacks?
You may want to take a look at the PGP model of trust (i.e. web of trust).
Aug
31
comment In HMAC-MD5 Implementation, why “i_key_pad” and “o_key_pad” if They Are Public and Constant?
I hope you don't mind that we closed this as a dupe (it's kind of providing a link). If you think there are things from the answer that you don't understand then please comment here.
Aug
31
comment Can a block cipher encrypt the message to itself (plaintext equal to ciphertext)
I did by incidence voted to close as a dupe for the first question, but I do agree that the link "This question" in the comment from Otus is more to the point. Besides that, I like the accepted answer better as well.