Overview
Comment: | Split list operations into separate functions to make it easier for OpenSSL 3.0 changes. Added pkey list function. Added mac info and pkey info placeholder functions. More checks for NULL pointers. Moved legacy load ciphers and digest to init routine. |
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9e6e94200c8f1bd0b5cd286644362d68 |
User & Date: | bohagan on 2023-12-04 03:56:29 |
Other Links: | branch diff | manifest | tags |
Context
2023-12-08
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03:03 | Digest optimizations to delay conversion to OpenSSL types to initialization procedure. Add MAC info and incomplete Pkey info functions. check-in: d93493f320 user: bohagan tags: crypto | |
2023-12-04
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03:56 | Split list operations into separate functions to make it easier for OpenSSL 3.0 changes. Added pkey list function. Added mac info and pkey info placeholder functions. More checks for NULL pointers. Moved legacy load ciphers and digest to init routine. check-in: 9e6e94200c user: bohagan tags: crypto | |
00:30 | Improved key and iv storage to use zero padded buffer to ensure no buffer overrun in OpenSSL API if string pointer is used. Added cipher default option for encrypt and decrypt. Pass data as last arg without -data option. check-in: 191f8b29bc user: bohagan tags: crypto | |
Changes
Modified doc/cryptography.html
from [b0e27f9e6f]
to [c88e8b2743].
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120 121 122 123 124 125 126 | 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | - - + + - - - + + + | <dl> <dt><a name="-iv"><strong>-iv</strong> <em>string</em></a></dt> <dd>Initialization vector (IV) to use. Required for some ciphers and GMAC. Cipher modes CBC, CFB, OFB and CTR all need an IV while ECB mode does not. A new, random IV should be created for each use. Think of the IV as a nonce (number used once), it's public but random and unpredictable. See the |
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285 286 287 288 289 290 291 | 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 | - + + | <dl> <h4>Info Commands</h4> <dt><a name="tls::cipher"><strong>tls::cipher</strong> <em>name</em></a></dt> <dd>Return a list of property names and values describing cipher <i>name</i>. Properties include name, description, block_size, |
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392 393 394 395 396 397 398 | 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 | - + - + | <dd>Removes the top level cryptographic transform from channel <em>channelId</em>.</dd> <br> <h4>Encryption and Decryption Commands</h4> <dt><a name="tls::encrypt"><strong>tls::encrypt</strong> |
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Modified generic/tls.c
from [3ece83c57b]
to [63ca861d17].
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2041 2042 2043 2044 2045 2046 2047 | 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 | - + - + + | LAPPEND_INT(interp, objPtr, "algorithm_bits", alg_bits); /* alg_bits is actual key secret bits. If use bits and secret (algorithm) bits differ, the rest of the bits are fixed, i.e. for limited export ciphers (bits < 56) */ /* Indicates which SSL/TLS protocol version first defined the cipher */ LAPPEND_STR(interp, objPtr, "min_version", SSL_CIPHER_get_version(cipher), -1); |
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Modified generic/tlsInfo.c
from [8baec4a647]
to [e2ea39ef40].
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49 50 51 52 53 54 55 | 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | - + - + - - | } /*******************************************************************/ /* *------------------------------------------------------------------- * |
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92 93 94 95 96 97 98 99 100 101 102 103 104 105 | 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | + + + | if (cipher == NULL) { Tcl_AppendResult(interp, "Invalid cipher \"", cipherName, "\"", NULL); return TCL_ERROR; } /* Get properties */ objPtr = Tcl_NewListObj(0, NULL); if (objPtr == NULL) { return TCL_ERROR; } LAPPEND_STR(interp, objPtr, "nid", OBJ_nid2ln(EVP_CIPHER_nid(cipher)), -1); LAPPEND_STR(interp, objPtr, "name", EVP_CIPHER_name(cipher), -1); LAPPEND_STR(interp, objPtr, "description", "", -1); LAPPEND_INT(interp, objPtr, "block_size", EVP_CIPHER_block_size(cipher)); LAPPEND_INT(interp, objPtr, "key_length", EVP_CIPHER_key_length(cipher)); LAPPEND_INT(interp, objPtr, "iv_length", EVP_CIPHER_iv_length(cipher)); LAPPEND_STR(interp, objPtr, "type", OBJ_nid2ln(EVP_CIPHER_type(cipher)), -1); |
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163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 | 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 | + + + + + + + + + + + + + + + + + + + + + + + + + + - + - - - - - - - - - + - | Tcl_SetObjResult(interp, objPtr); return TCL_OK; } /* *------------------------------------------------------------------- * * CipherList -- * * Return a list of all cipher algorithms * * Results: * A standard Tcl list. * * Side effects: * None. * *------------------------------------------------------------------- */ int CipherList(Tcl_Interp *interp) { Tcl_Obj *objPtr = Tcl_NewListObj(0, NULL); if (objPtr == NULL) { return TCL_ERROR; } OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, NamesCallback, (void *) objPtr); Tcl_SetObjResult(interp, objPtr); return TCL_OK; } /* *------------------------------------------------------------------- * * CiphersObjCmd -- * * This procedure is invoked to process the "tls::ciphers" command * to list available ciphers, based upon protocol selected. * * Results: * A standard Tcl result list. * * Side effects: * constructs and destroys SSL context (CTX) * *------------------------------------------------------------------- */ static int CiphersObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { SSL_CTX *ctx = NULL; SSL *ssl = NULL; STACK_OF(SSL_CIPHER) *sk = NULL; |
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305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 | 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 | + + + + + + + + | if (sk != NULL) { Tcl_Obj *objPtr = NULL; if (!verbose) { char *cp; objPtr = Tcl_NewListObj(0, NULL); if (objPtr == NULL) { res = TCL_ERROR; goto done; } for (int i = 0; i < sk_SSL_CIPHER_num(sk); i++) { const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i); if (c == NULL) continue; /* cipher name or (NONE) */ cp = SSL_CIPHER_get_name(c); if (cp == NULL) break; Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(cp, -1)); } } else { char buf[BUFSIZ]; objPtr = Tcl_NewStringObj("",0); if (objPtr == NULL) { res = TCL_ERROR; goto done; } for (int i = 0; i < sk_SSL_CIPHER_num(sk); i++) { const SSL_CIPHER *c = sk_SSL_CIPHER_value(sk, i); if (c == NULL) continue; /* textual description of the cipher */ if (SSL_CIPHER_description(c, buf, sizeof(buf)) != NULL) { |
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340 341 342 343 344 345 346 347 348 | 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 | + - + | /* Clean up */ if (use_supported) { sk_SSL_CIPHER_free(sk); } Tcl_SetObjResult(interp, objPtr); } done: SSL_free(ssl); SSL_CTX_free(ctx); |
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375 376 377 378 379 380 381 382 383 384 385 386 387 388 | 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 | + + + | if (md == NULL) { Tcl_AppendResult(interp, "Invalid digest \"", digestName, "\"", NULL); return TCL_ERROR; } /* Get properties */ objPtr = Tcl_NewListObj(0, NULL); if (objPtr == NULL) { return TCL_ERROR; } LAPPEND_STR(interp, objPtr, "name", EVP_MD_name(md), -1); LAPPEND_STR(interp, objPtr, "description", "", -1); LAPPEND_INT(interp, objPtr, "size", EVP_MD_size(md)); LAPPEND_INT(interp, objPtr, "block_size", EVP_MD_block_size(md)); LAPPEND_STR(interp, objPtr, "provider", "", -1); LAPPEND_STR(interp, objPtr, "type", OBJ_nid2ln(EVP_MD_type(md)), -1); LAPPEND_STR(interp, objPtr, "pkey_type", OBJ_nid2ln(EVP_MD_pkey_type(md)), -1); |
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401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 | 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 | + + + + + + + + + + + + + + + + + + + + + + + + + + - - - - - - - - - - + + + + + + + + + - - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + - - + + + + + + + + - - - - - - | Tcl_SetObjResult(interp, objPtr); return TCL_OK; } /* *------------------------------------------------------------------- * * DigestList -- * * Return a list of all digest algorithms * * Results: * A standard Tcl list. * * Side effects: * None. * *------------------------------------------------------------------- */ int DigestList(Tcl_Interp *interp) { Tcl_Obj *objPtr = Tcl_NewListObj(0, NULL); if (objPtr == NULL) { return TCL_ERROR; } OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, NamesCallback, (void *) objPtr); Tcl_SetObjResult(interp, objPtr); return TCL_OK; } /* *------------------------------------------------------------------- * * DigestsObjCmd -- * * Return a list of all valid hash algorithms or message digests. * * Results: * A standard Tcl list. * * Side effects: * None. * *------------------------------------------------------------------- */ int DigestsObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { |
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498 499 500 501 502 503 504 505 506 507 508 509 510 511 | 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 | + + + + - + + + + | *------------------------------------------------------------------- */ static int ProtocolsObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { Tcl_Obj *objPtr; dprintf("Called"); /* Clear errors */ Tcl_ResetResult(interp); ERR_clear_error(); /* Validate arg count */ if (objc != 1) { Tcl_WrongNumArgs(interp, 1, objv, NULL); return TCL_ERROR; } |
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583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 | 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 | + + + + + + + + | * * Side effects: * Creates commands * *------------------------------------------------------------------- */ int Tls_InfoCommands(Tcl_Interp *interp) { #if OPENSSL_VERSION_NUMBER < 0x10100000L OpenSSL_add_all_ciphers(); OpenSSL_add_all_digests(); OpenSSL_add_all_algorithms(); #endif Tcl_CreateObjCommand(interp, "tls::cipher", CipherObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::ciphers", CiphersObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::digests", DigestsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::macs", MacsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::pkeys", PkeysObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::protocols", ProtocolsObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); return TCL_OK; } |
Modified tests/info.csv
from [e9434748d4]
to [25591cb194].
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8 9 10 11 12 13 14 15 16 17 18 19 20 21 | 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | + | command,source common.tcl,,,,,,,,, ,,,,,,,,,, command,# Helper functions,,,,,,,,, command,"proc lcompare {list1 list2} {set m """";set u """";foreach i $list1 {if {$i ni $list2} {lappend m $i}};foreach i $list2 {if {$i ni $list1} {lappend u $i}};return [list ""missing"" $m ""unexpected"" $u]}",,,,,,,,, command,proc exec_get {delim args} {return [split [exec openssl {*}$args] $delim]},,,,,,,,, command,"proc exec_get_ciphers {} {set list [list];set data [exec openssl list -cipher-algorithms];foreach line [split $data ""\n""] {foreach {cipher null alias} [split [string trim $line]] {lappend list [string tolower $cipher]}};return [lsort -unique $list]}",,,,,,,,, command,"proc exec_get_digests {} {set list [list];set data [exec openssl dgst -list];foreach line [split $data ""\n""] {foreach digest $line {if {[string match ""-*"" $digest]} {lappend list [string trimleft $digest ""-""]}}};return [lsort $list]}",,,,,,,,, command,"proc exec_get_pkeys {} {set list [list];set data [exec openssl list -public-key-methods];foreach line [split $data ""\n""] {if {![string match ""*Type:*"" $line]} {lappend list [string trim $line]}};return $list}",,,,,,,,, command,proc exec_get_macs {} {return [list cmac hmac]},,,,,,,,, command,proc list_tolower {list} {set result [list];foreach element $list {lappend result [string tolower $element]};return $result},,,,,,,,, ,,,,,,,,,, command,# Test list ciphers,,,,,,,,, Ciphers List,All,,,lcompare [lsort [exec_get_ciphers]] [list_tolower [lsort [::tls::ciphers]]],,,missing {rc5 rc5-cbc rc5-cfb rc5-ecb rc5-ofb} unexpected {aes-128-ccm aes-128-gcm aes-192-ccm aes-192-gcm aes-256-ccm aes-256-gcm},,, ,,,,,,,,,, command,# Test list ciphers for protocols,,,,,,,,, |
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62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | + + + - + + | ,,,,,,,,,, command,# Test Digest Info,,,,,,,,, Digest Info,md5,,,tls::digests md5,,,name MD5 description {} size 16 block_size 64 provider {} type md5 pkey_type md5WithRSAEncryption flags {One-shot 0 XOF 0 DigestAlgorithmId_NULL 0 DigestAlgorithmId_Abscent 0 DigestAlgorithmId_Custom 0 FIPS 0},,, ,,,,,,,,,, command,# Test list MACs,,,,,,,,, MAC List,All,,,lcompare [exec_get_macs] [tls::macs],,,missing {} unexpected {},,, ,,,,,,,,,, command,# Test list Pkeys,,,,,,,,, Pkey List,All,,,lcompare [exec_get_pkeys] [tls::pkeys],,,missing {} unexpected {},,, ,,,,,,,,,, command,# Test list protocols,,,,,,,,, Protocols,All,,,lcompare $::protocols [::tls::protocols],,,missing {ssl2 ssl3} unexpected {},,, ,,,,,,,,,, command,# Test show version,,,,,,,,, Version,All,,,::tls::version,,glob,*,,, Version,OpenSSL,OpenSSL,,::tls::version,,glob,OpenSSL*,,, ,,,,,,,,,, command,# Error Cases,,,,,,,,, Error Cases,Cipher Too few args,,,::tls::cipher,,,"wrong # args: should be ""::tls::cipher name""",,,1 Error Cases,Cipher Too many args,,,::tls::cipher too many args,,,"wrong # args: should be ""::tls::cipher name""",,,1 Error Cases,Digests Too many args,,,::tls::digests too many args,,,"wrong # args: should be ""::tls::digests ?name?""",,,1 |
Modified tests/info.test
from [52471437c8]
to [3004379e81].
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17 18 19 20 21 22 23 | 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | - + | source common.tcl # Helper functions proc lcompare {list1 list2} {set m "";set u "";foreach i $list1 {if {$i ni $list2} {lappend m $i}};foreach i $list2 {if {$i ni $list1} {lappend u $i}};return [list "missing" $m "unexpected" $u]} proc exec_get {delim args} {return [split [exec openssl {*}$args] $delim]} proc exec_get_ciphers {} {set list [list];set data [exec openssl list -cipher-algorithms];foreach line [split $data "\n"] {foreach {cipher null alias} [split [string trim $line]] {lappend list [string tolower $cipher]}};return [lsort -unique $list]} proc exec_get_digests {} {set list [list];set data [exec openssl dgst -list];foreach line [split $data "\n"] {foreach digest $line {if {[string match "-*" $digest]} {lappend list [string trimleft $digest "-"]}}};return [lsort $list]} |
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180 181 182 183 184 185 186 187 188 189 | 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 | + + + + + + + - + - + - + - + - + - + - + - + + + + + - + - + | # Test list MACs test MAC_List-9.1 {All} -body { lcompare [exec_get_macs] [tls::macs] } -result {missing {} unexpected {}} # Test list Pkeys test Pkey_List-10.1 {All} -body { lcompare [exec_get_pkeys] [tls::pkeys] } -result {missing {} unexpected {}} # Test list protocols |