calculate SHA hash for finished
| 193 | |
| 194 | // calculate SHA hash for finished |
| 195 | void buildSHA(SSL& ssl, Finished& fin, const opaque* sender) |
| 196 | { |
| 197 | |
| 198 | opaque sha_result[SHA_LEN]; |
| 199 | opaque sha_inner[SIZEOF_SENDER + SECRET_LEN + PAD_SHA]; |
| 200 | opaque sha_outer[SECRET_LEN + PAD_SHA + SHA_LEN]; |
| 201 | |
| 202 | const opaque* master_secret = |
| 203 | ssl.getSecurity().get_connection().master_secret_; |
| 204 | |
| 205 | // make sha inner |
| 206 | memcpy(sha_inner, sender, SIZEOF_SENDER); |
| 207 | memcpy(&sha_inner[SIZEOF_SENDER], master_secret, SECRET_LEN); |
| 208 | memcpy(&sha_inner[SIZEOF_SENDER + SECRET_LEN], PAD1, PAD_SHA); |
| 209 | |
| 210 | ssl.useHashes().use_SHA().get_digest(sha_result, sha_inner, |
| 211 | sizeof(sha_inner)); |
| 212 | |
| 213 | // make sha outer |
| 214 | memcpy(sha_outer, master_secret, SECRET_LEN); |
| 215 | memcpy(&sha_outer[SECRET_LEN], PAD2, PAD_SHA); |
| 216 | memcpy(&sha_outer[SECRET_LEN + PAD_SHA], sha_result, SHA_LEN); |
| 217 | |
| 218 | ssl.useHashes().use_SHA().get_digest(fin.set_sha(), sha_outer, |
| 219 | sizeof(sha_outer)); |
| 220 | } |
| 221 | |
| 222 | |
| 223 | // sanity checks on encrypted message size |
no test coverage detected