busybox-w32/networking/tls_aesgcm.h, branch zstd

tls: in AES-GCM decoding, avoid memmove

2018-11-24T12:51:46+00:00

function old new delta xorbuf3 - 36 +36 xorbuf 24 12 -12 tls_xread_record 656 634 -22 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 36/-34) Total: 2 bytes Signed-off-by: Denys Vlasenko

tls: simplify aesgcm_GHASH()

2018-11-23T17:31:26+00:00

function old new delta xwrite_encrypted 604 599 -5 FlattenSzInBits 52 - -52 aesgcm_GHASH 395 262 -133 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 0/2 up/down: 0/-190) Total: -190 bytes Signed-off-by: Denys Vlasenko

tls: in AES-CBC code, do not set key for every record - do it once

2018-11-23T17:02:44+00:00

function old new delta aes_setkey 16 212 +196 tls_handshake 1941 1977 +36 aes_encrypt_1 382 396 +14 xwrite_encrypted 605 604 -1 tls_xread_record 659 656 -3 aes_encrypt_one_block 65 59 -6 aes_cbc_encrypt 172 121 -51 aesgcm_setkey 58 - -58 aes_cbc_decrypt 958 881 -77 KeyExpansion 188 - -188 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 3/5 up/down: 246/-384) Total: -138 bytes Signed-off-by: Denys Vlasenko

tls: add support for TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 cipher

2018-11-23T16:48:07+00:00

function old new delta xwrite_encrypted 209 605 +396 GHASH - 395 +395 aes_encrypt_1 - 382 +382 GMULT - 192 +192 tls_xread_record 489 659 +170 aes_encrypt_one_block - 65 +65 aesgcm_setkey - 58 +58 FlattenSzInBits - 52 +52 tls_handshake 1890 1941 +51 xwrite_and_update_handshake_hash 46 81 +35 xorbuf - 24 +24 aes_setkey - 16 +16 psRsaEncryptPub 413 421 +8 stty_main 1221 1227 +6 ssl_client_main 138 143 +5 next_token 841 845 +4 spawn_ssl_client 218 219 +1 volume_id_probe_hfs_hfsplus 564 563 -1 read_package_field 232 230 -2 i2cdetect_main 674 672 -2 fail_hunk 139 136 -3 parse_expr 891 883 -8 curve25519 802 793 -9 aes_cbc_decrypt 971 958 -13 xwrite_handshake_record 43 - -43 aes_cbc_encrypt 644 172 -472 ------------------------------------------------------------------------------ (add/remove: 9/1 grow/shrink: 9/8 up/down: 1860/-553) Total: 1307 bytes Signed-off-by: Denys Vlasenko