Careful about this. The technically correct answer is misleading.
Yes, MD5 is used in the PRF, but it is XORed with SHA1. So you get at
least the strength of stronger of the two.
--David Jacobson
On 4/23/13 3:31 AM, Erwann Abalea wrote:
MD5 is used in TLS1.0 for RSA signing and random d
You're right.
PRF in TLS1.0 is done by splitting the secret in 2 parts, hashing the
first with MD5, hashing the second with SHA1, and XORing the 2 results.
RSA signing in TLS1.0 is done by hashing the data with MD5 and SHA1,
concatenating the 2 hash results, and signing the 36 bytes result (wit
MD5 is used in TLS1.0 for RSA signing and random derivation (PRF). See
RFC2246.
(Please note that OpenSSL hasn't been mentioned in this sentence).
SHA256 used for the PRF is available with TLS1.2 only. SHA256 used for
the HMAC is available for some ciphersuites defined for TLS1.2 only (but
I t
