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[XS] Change in pysim[master]: saip: rework file sizes for "half-defined" template files
by lynxis lazus 16 Dec '25

16 Dec '25

lynxis lazus has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/41686?usp=email ) Change subject: saip: rework file sizes for "half-defined" template files ...................................................................... saip: rework file sizes for "half-defined" template files Some templates (e.g. for 5GS) define files which aren't completely defined. 5GS SUCI_Calc_Info: doesn't have a file size defined. The saip tool will crash in TODO: add crash Change-Id: I7c4a0914aef1049a416e6b091f23daab39a1dd9c --- M pySim/esim/saip/__init__.py 1 file changed, 4 insertions(+), 2 deletions(-) git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/86/41686/1 diff --git a/pySim/esim/saip/__init__.py b/pySim/esim/saip/__init__.py index 1c0c715..6ec8b23 100644 --- a/pySim/esim/saip/__init__.py +++ b/pySim/esim/saip/__init__.py @@ -291,6 +291,10 @@ dfName = fileDescriptor.get('dfName', None) if dfName: self.df_name = dfName + efFileSize = fileDescriptor.get('efFileSize', None) + if efFileSize: + self._file_size = self._decode_file_size(efFileSize) + pefi = fileDescriptor.get('proprietaryEFInfo', {}) securityAttributesReferenced = fileDescriptor.get('securityAttributesReferenced', None) if securityAttributesReferenced: @@ -300,13 +304,11 @@ fdb_dec = fd_dec['file_descriptor_byte'] self.shareable = fdb_dec['shareable'] if fdb_dec['file_type'] == 'working_ef': - efFileSize = fileDescriptor.get('efFileSize', None) if fd_dec['num_of_rec']: self.nb_rec = fd_dec['num_of_rec'] if fd_dec['record_len']: self.rec_len = fd_dec['record_len'] if efFileSize: - self._file_size = self._decode_file_size(efFileSize) if self.rec_len and self.nb_rec == None: # compute the number of records from file size and record length self.nb_rec = self._file_size // self.rec_len -- To view, visit https://gerrit.osmocom.org/c/pysim/+/41686?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: pysim Gerrit-Branch: master Gerrit-Change-Id: I7c4a0914aef1049a416e6b091f23daab39a1dd9c Gerrit-Change-Number: 41686 Gerrit-PatchSet: 1 Gerrit-Owner: lynxis lazus <lynxis(a)fe80.eu>

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[S] Change in libosmocore[master]: io_uring: RECVMSG_SENDMSG: Reset fd to blocking after osmo_fd_registe...
by daniel 16 Dec '25

16 Dec '25

Attention is currently required from: fixeria, jolly, laforge, pespin. daniel has posted comments on this change by pespin. ( https://gerrit.osmocom.org/c/libosmocore/+/41671?usp=email ) Change subject: io_uring: RECVMSG_SENDMSG: Reset fd to blocking after osmo_fd_register() workaround ...................................................................... Patch Set 4: Code-Review+2 -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/41671?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: Idba623730230bc049b827e51b058cd64d23b730f Gerrit-Change-Number: 41671 Gerrit-PatchSet: 4 Gerrit-Owner: pespin <pespin(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: daniel <dwillmann(a)sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: jolly <andreas(a)eversberg.eu> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de> Gerrit-Attention: jolly <andreas(a)eversberg.eu> Gerrit-Attention: laforge <laforge(a)osmocom.org> Gerrit-Attention: pespin <pespin(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Tue, 16 Dec 2025 13:48:09 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

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[S] Change in libosmocore[master]: logging: change gsmtap target to use wqueue by default
by fixeria 16 Dec '25

16 Dec '25

Attention is currently required from: pespin. fixeria has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email ) Change subject: logging: change gsmtap target to use wqueue by default ...................................................................... Patch Set 1: (1 comment) File include/osmocom/core/logging.h: https://gerrit.osmocom.org/c/libosmocore/+/41685/comment/d6b2f693_7f4641ce?… : PS1, Line 356: bool ofd_wq_mode; > this is breaking ABI. […] It's used outside of libosmocore, so I am not going to touch it. Shall I add an entry to TODO-RELEASE? -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: I9d8c953a5b467ce4396d2d20ca6fa72a749723c0 Gerrit-Change-Number: 41685 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-CC: pespin <pespin(a)sysmocom.de> Gerrit-Attention: pespin <pespin(a)sysmocom.de> Gerrit-Comment-Date: Tue, 16 Dec 2025 13:29:48 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: pespin <pespin(a)sysmocom.de>

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[S] Change in libosmocore[master]: logging: change gsmtap target to use wqueue by default
by fixeria 16 Dec '25

16 Dec '25

Attention is currently required from: pespin. fixeria has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email ) Change subject: logging: change gsmtap target to use wqueue by default ...................................................................... Patch Set 1: (1 comment) File src/vty/logging_vty.c: https://gerrit.osmocom.org/c/libosmocore/+/41685/comment/b51d971e_7d41e010?… : PS1, Line 1047: if (tgt->tgt_gsmtap.ofd_wq_mode) > You don't need here the new field tgt->tgt_gsmtap.ofd_wq_mode: […] I would do exactly that if `struct gsmtap_inst` were public, but it's not. It's an opaque struct for us here and we cannot access its fields. -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: I9d8c953a5b467ce4396d2d20ca6fa72a749723c0 Gerrit-Change-Number: 41685 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-CC: pespin <pespin(a)sysmocom.de> Gerrit-Attention: pespin <pespin(a)sysmocom.de> Gerrit-Comment-Date: Tue, 16 Dec 2025 13:25:17 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: pespin <pespin(a)sysmocom.de>

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[S] Change in libosmocore[master]: logging: change gsmtap target to use wqueue by default
by pespin 16 Dec '25

16 Dec '25

Attention is currently required from: fixeria. pespin has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email ) Change subject: logging: change gsmtap target to use wqueue by default ...................................................................... Patch Set 1: (1 comment) Commit Message: https://gerrit.osmocom.org/c/libosmocore/+/41685/comment/048d35c2_ccf9e02c?… : PS1, Line 12: target, which can also be blocking under some circumstances. > which can also be blocking if UDP socket buffer becomes full. "UDP socket send buffer" -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: I9d8c953a5b467ce4396d2d20ca6fa72a749723c0 Gerrit-Change-Number: 41685 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-CC: pespin <pespin(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Tue, 16 Dec 2025 13:24:28 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: pespin <pespin(a)sysmocom.de>

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[S] Change in libosmocore[master]: logging: change gsmtap target to use wqueue by default
by pespin 16 Dec '25

16 Dec '25

Attention is currently required from: fixeria. pespin has posted comments on this change by fixeria. ( https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email ) Change subject: logging: change gsmtap target to use wqueue by default ...................................................................... Patch Set 1: (3 comments) Commit Message: https://gerrit.osmocom.org/c/libosmocore/+/41685/comment/184afbc5_ced71834?… : PS1, Line 12: target, which can also be blocking under some circumstances. which can also be blocking if UDP socket buffer becomes full. File include/osmocom/core/logging.h: https://gerrit.osmocom.org/c/libosmocore/+/41685/comment/ee83b3d6_0605adc1?… : PS1, Line 356: bool ofd_wq_mode; this is breaking ABI.Can you check if log_target struct is used anywhere outside of libosmocore? If not, we can move this struct to an internal header. File src/vty/logging_vty.c: https://gerrit.osmocom.org/c/libosmocore/+/41685/comment/b6247ed3_1873a50e?… : PS1, Line 1047: if (tgt->tgt_gsmtap.ofd_wq_mode) You don't need here the new field tgt->tgt_gsmtap.ofd_wq_mode: if (!target->tgt_gsmtap.gsmtap_inst || target->tgt_gsmtap.gsmtap_inst->osmo_io_mode) -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: I9d8c953a5b467ce4396d2d20ca6fa72a749723c0 Gerrit-Change-Number: 41685 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-CC: pespin <pespin(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Comment-Date: Tue, 16 Dec 2025 13:19:47 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No

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[S] Change in libosmocore[master]: logging: change gsmtap target to use wqueue by default
by fixeria 16 Dec '25

16 Dec '25

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email ) Change subject: logging: change gsmtap target to use wqueue by default ...................................................................... logging: change gsmtap target to use wqueue by default In b72867f0 ("logging: Change stderr + file target to use non-blocking write") the `stderr` and `file` targets were changed to use the write queue in order to avoid blocking. Do the same for the `gsmtap` logging target, which can also be blocking under some circumstances. Change-Id: I9d8c953a5b467ce4396d2d20ca6fa72a749723c0 Related: OS#6794, OS#4311 --- M include/osmocom/core/logging.h M src/core/logging_gsmtap.c M src/vty/logging_vty.c 3 files changed, 14 insertions(+), 5 deletions(-) git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/85/41685/1 diff --git a/include/osmocom/core/logging.h b/include/osmocom/core/logging.h index 9d4f1fb..de493a7 100644 --- a/include/osmocom/core/logging.h +++ b/include/osmocom/core/logging.h @@ -353,6 +353,7 @@ struct gsmtap_inst *gsmtap_inst; const char *ident; const char *hostname; + bool ofd_wq_mode; } tgt_gsmtap; struct { diff --git a/src/core/logging_gsmtap.c b/src/core/logging_gsmtap.c index 7775c27..b275ae7 100644 --- a/src/core/logging_gsmtap.c +++ b/src/core/logging_gsmtap.c @@ -156,6 +156,7 @@ target->tgt_gsmtap.gsmtap_inst = gti; target->tgt_gsmtap.ident = talloc_strdup(target, ident); target->tgt_gsmtap.hostname = talloc_strdup(target, host); + target->tgt_gsmtap.ofd_wq_mode = ofd_wq_mode; target->type = LOG_TGT_TYPE_GSMTAP; target->raw_output = _gsmtap_raw_output; diff --git a/src/vty/logging_vty.c b/src/vty/logging_vty.c index 678ae68..947da49 100644 --- a/src/vty/logging_vty.c +++ b/src/vty/logging_vty.c @@ -810,9 +810,10 @@ } DEFUN(cfg_log_gsmtap, cfg_log_gsmtap_cmd, - "log gsmtap [HOSTNAME]", + "log gsmtap [HOSTNAME] [blocking-io]", LOG_STR "Logging via GSMTAP\n" - "Host name to send the GSMTAP logging to (UDP port 4729)\n") + "Host name to send the GSMTAP logging to (UDP port 4729)\n" + "Use blocking, synchronous I/O\n") { const char *hostname = argc ? argv[0] : "127.0.0.1"; struct log_target *tgt; @@ -820,8 +821,12 @@ log_tgt_mutex_lock(); tgt = log_target_find(LOG_TGT_TYPE_GSMTAP, hostname); if (!tgt) { + bool ofd_wq_mode = true; + if (argc > 1 && !strcmp(argv[1], "blocking-io")) + ofd_wq_mode = false; tgt = log_target_create_gsmtap(hostname, GSMTAP_UDP_PORT, - host.app_info->name, false, + host.app_info->name, + ofd_wq_mode, true); if (!tgt) { vty_out(vty, "%% Unable to create GSMTAP log for %s%s", @@ -1039,8 +1044,10 @@ log_target_rb_avail_size(tgt), VTY_NEWLINE); break; case LOG_TGT_TYPE_GSMTAP: - vty_out(vty, "log gsmtap %s%s", - tgt->tgt_gsmtap.hostname, VTY_NEWLINE); + if (tgt->tgt_gsmtap.ofd_wq_mode) + vty_out(vty, "log gsmtap %s%s", tgt->tgt_gsmtap.hostname, VTY_NEWLINE); + else + vty_out(vty, "log gsmtap %s blocking-io%s", tgt->tgt_gsmtap.hostname, VTY_NEWLINE); break; case LOG_TGT_TYPE_SYSTEMD: vty_out(vty, "log systemd-journal%s%s", -- To view, visit https://gerrit.osmocom.org/c/libosmocore/+/41685?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: libosmocore Gerrit-Branch: master Gerrit-Change-Id: I9d8c953a5b467ce4396d2d20ca6fa72a749723c0 Gerrit-Change-Number: 41685 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <vyanitskiy(a)sysmocom.de>

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[S] Change in osmo-tetra[master]: Added functional TA61 decryption
by wbokslag 16 Dec '25

16 Dec '25

wbokslag has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-tetra/+/41684?usp=email ) Change subject: Added functional TA61 decryption ...................................................................... Added functional TA61 decryption Now uses a known SCK/CCK to decrypt identities using TA61 Change-Id: Ic01c1d9cd151ba0213ed67971cc479f312af14fb --- M src/crypto/tetra_crypto.c 1 file changed, 9 insertions(+), 2 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-tetra refs/changes/84/41684/1 diff --git a/src/crypto/tetra_crypto.c b/src/crypto/tetra_crypto.c index 3230cb8..7344dd0 100644 --- a/src/crypto/tetra_crypto.c +++ b/src/crypto/tetra_crypto.c @@ -204,8 +204,15 @@ bool decrypt_identity(struct tetra_crypto_state *tcs, struct tetra_addr *addr) { - /* TODO FIXME implement TA61 decryption */ - return false; + if (!tcs->cck) + return false; + + uint8_t a_addr[3] = {addr->ssi >> 16, addr->ssi >> 8, addr->ssi}; + ta61_inv(tcs->cck->key, a_addr, a_addr); + + uint32_t addr_decrypted = (a_addr[0] << 16) | (a_addr[1] << 8) | a_addr[2]; + addr->ssi = addr_decrypted; + return true; } bool decrypt_mac_element(struct tetra_crypto_state *tcs, struct tetra_tmvsap_prim *tmvp, struct tetra_key *key, int l1_len, int tmpdu_offset) -- To view, visit https://gerrit.osmocom.org/c/osmo-tetra/+/41684?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: osmo-tetra Gerrit-Branch: master Gerrit-Change-Id: Ic01c1d9cd151ba0213ed67971cc479f312af14fb Gerrit-Change-Number: 41684 Gerrit-PatchSet: 1 Gerrit-Owner: wbokslag <w.bokslag(a)midnightblue.nl>

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[M] Change in osmo-tetra[master]: Added TA61 to the TAA1 suite
by wbokslag 16 Dec '25

16 Dec '25

wbokslag has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-tetra/+/41683?usp=email ) Change subject: Added TA61 to the TAA1 suite ...................................................................... Added TA61 to the TAA1 suite Change-Id: I79e93d6863ab6c044a8e19bba85c7447095f5e11 --- M src/crypto/hurdle.c M src/crypto/hurdle.h M src/crypto/taa1.c M src/crypto/taa1.h 4 files changed, 149 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-tetra refs/changes/83/41683/1 diff --git a/src/crypto/hurdle.c b/src/crypto/hurdle.c index 58a1bb0..a7b1f8d 100644 --- a/src/crypto/hurdle.c +++ b/src/crypto/hurdle.c @@ -45,6 +45,24 @@ 0xF0, 0xE6, 0x3F, 0x14, 0xF1, 0xE2, 0xB1, 0x86, 0xB4, 0xF3, 0x74, 0xFA, 0x6A, 0xB2, 0x21, 0x6D, 0xEA, 0xB5, 0xE7, 0xE3, 0xC9, 0xD3, 0x8F, 0x03, 0x75, 0xE8, 0xD4, 0x42, 0xFD, 0x7E, 0xFF, 0x7F}; +const uint8_t g_abHurdleInvSbox[256] = { + 0x03, 0x02, 0x8D, 0xF7, 0x44, 0xA4, 0x79, 0xB9, 0xAE, 0x9E, 0xDE, 0x9B, 0x3E, 0xA9, 0x5E, 0x95, + 0xDB, 0x71, 0xC3, 0x5B, 0xE3, 0x3D, 0x4F, 0x65, 0x93, 0xDD, 0x56, 0x83, 0xA3, 0x80, 0x48, 0x29, + 0x6F, 0xEE, 0x3A, 0x52, 0x63, 0x55, 0x2F, 0x89, 0x73, 0xD3, 0x1C, 0x49, 0x25, 0x88, 0x30, 0x6D, + 0x4B, 0x8A, 0x6C, 0x2D, 0xA7, 0xC0, 0x43, 0x5D, 0x53, 0x21, 0xCC, 0xAA, 0xA8, 0x0F, 0x16, 0xE2, + 0x35, 0x5C, 0xFB, 0xD6, 0x91, 0x4D, 0xA5, 0x07, 0x33, 0x8B, 0x28, 0x1D, 0x15, 0x64, 0x46, 0x90, + 0x3B, 0x20, 0x6B, 0x8F, 0x82, 0x19, 0x26, 0x62, 0x10, 0xC2, 0xC8, 0x60, 0x94, 0x0D, 0x34, 0x42, + 0x27, 0x54, 0xCA, 0x58, 0xBA, 0x01, 0x14, 0x4E, 0x51, 0x8E, 0xEC, 0xB0, 0x23, 0xEF, 0x2C, 0x31, + 0x2B, 0xD2, 0x12, 0xDA, 0xEA, 0xF8, 0xD9, 0x7A, 0xD8, 0x74, 0x05, 0xB8, 0x87, 0xCE, 0xFD, 0xFF, + 0x18, 0x57, 0xA2, 0x1E, 0x7F, 0xCF, 0xE7, 0xB3, 0x4A, 0x32, 0x24, 0x2E, 0x50, 0x6A, 0xC7, 0xF6, + 0x1B, 0xDC, 0x47, 0x4C, 0x98, 0xBF, 0x0C, 0x5F, 0x08, 0xDF, 0xBE, 0x97, 0xAF, 0x0A, 0xC4, 0xA1, + 0x1F, 0x81, 0x9C, 0xC5, 0x37, 0xC1, 0x45, 0x06, 0xCD, 0x38, 0x0E, 0x3F, 0x9F, 0x0B, 0xBD, 0xB4, + 0x84, 0xE6, 0xED, 0x68, 0xE8, 0xF1, 0xBC, 0xAC, 0xC6, 0x67, 0x04, 0x78, 0x96, 0x99, 0xAD, 0xB5, + 0x11, 0x5A, 0xA6, 0x36, 0x66, 0xBB, 0xA0, 0x9D, 0xD1, 0xF4, 0x61, 0x59, 0x86, 0x7E, 0xAB, 0x39, + 0x2A, 0x72, 0xCB, 0xF5, 0xFA, 0x40, 0xD4, 0xD5, 0x13, 0x70, 0x75, 0x7B, 0x9A, 0x09, 0x1A, 0x92, + 0x17, 0x3C, 0xE5, 0xF3, 0x85, 0xB2, 0xE1, 0xF2, 0xF9, 0x77, 0xF0, 0xB7, 0x6E, 0x22, 0xB1, 0x69, + 0xE0, 0xE4, 0xB6, 0xE9, 0x00, 0x8C, 0xD0, 0xC9, 0x41, 0xD7, 0xEB, 0x76, 0x7C, 0xFC, 0x7D, 0xFE}; + #if __BYTE_ORDER == __LITTLE_ENDIAN static const uint32_t g_adwReorder[16] = { 0x00000000, 0x80000000, 0x00800000, 0x80800000, diff --git a/src/crypto/hurdle.h b/src/crypto/hurdle.h index bbd641c..123a5d3 100644 --- a/src/crypto/hurdle.h +++ b/src/crypto/hurdle.h @@ -16,5 +16,6 @@ void HURDLE_dec_cts(uint8_t abPlaintext[15], const uint8_t abCiphertext[15], uint8_t abKey[16]); extern const uint8_t g_abHurdleSbox[256]; +extern const uint8_t g_abHurdleInvSbox[256]; #endif /* HAVE_HURDLE_H */ diff --git a/src/crypto/taa1.c b/src/crypto/taa1.c index 09e3a4b..71ff45d 100644 --- a/src/crypto/taa1.c +++ b/src/crypto/taa1.c @@ -127,6 +127,30 @@ lpBufferOut[9] = lpBuffer[13]; } +void transform_identity(const uint8_t *lpInput, uint8_t *lpOutput) +{ + uint8_t abSboxIndexes[3]; + + abSboxIndexes[0] = ((lpInput[1] + lpInput[0]) << 1) - lpInput[2]; + abSboxIndexes[1] = ((lpInput[2] + lpInput[0]) << 1) - lpInput[1]; + abSboxIndexes[2] = ((lpInput[2] + lpInput[1]) << 1) - lpInput[0]; + + lpOutput[0] = g_abHurdleSbox[abSboxIndexes[0]]; + lpOutput[1] = g_abHurdleSbox[abSboxIndexes[1]]; + lpOutput[2] = g_abHurdleSbox[abSboxIndexes[2]]; +} + +void transform_identity_inverse(const uint8_t *lpInput, uint8_t *lpOutput) +{ + uint8_t x = g_abHurdleInvSbox[lpInput[0]]; + uint8_t y = g_abHurdleInvSbox[lpInput[1]]; + uint8_t z = g_abHurdleInvSbox[lpInput[2]]; + + lpOutput[0] = (114*x + 114*y - 57*z); + lpOutput[1] = (114*x - 57*y + 114*z); + lpOutput[2] = (-57*x + 114*y + 114*z); +} + void ta11_ta41(uint8_t *lpKeyK, uint8_t *lpChallengeRs, uint8_t *lpKsOut) { uint8_t abChallengeExpanded[16]; @@ -261,6 +285,103 @@ abUnsealed[10] & 0xe0; } +void ta61_compute_c(const uint8_t *lpKey, uint8_t *lpIntermediateKeyOut) +{ + struct hurdle_ctx stCipher; + uint8_t abKeyExpanded[16]; + + transform_80_to_128(lpKey, abKeyExpanded); + + hurdle_set_key(abKeyExpanded, &stCipher); + + uint8_t abPlaintext[8]; + abPlaintext[0] = lpKey[0] ^ lpKey[2]; + abPlaintext[1] = lpKey[1] ^ lpKey[3]; + abPlaintext[2] = lpKey[2] ^ lpKey[4]; + abPlaintext[3] = lpKey[3] ^ lpKey[5]; + abPlaintext[4] = lpKey[4] ^ lpKey[6]; + abPlaintext[5] = lpKey[5] ^ lpKey[7]; + abPlaintext[6] = lpKey[6] ^ lpKey[8]; + abPlaintext[7] = lpKey[7] ^ lpKey[9]; + + HURDLE_encrypt( + lpIntermediateKeyOut, + abPlaintext, + &stCipher, + HURDLE_ENCRYPT + ); +} + +void ta61(const uint8_t *lpKey, const uint8_t *lpIdentity, uint8_t *lpEncIdentityOut) +{ + uint8_t abIntermediateKey[8]; + ta61_compute_c(lpKey, abIntermediateKey); + ta61_inner(abIntermediateKey, lpIdentity, lpEncIdentityOut); +} + +void ta61_inner(const uint8_t *lpIntermediateKey, const uint8_t *lpIdentity, uint8_t *lpEncIdentityOut) +{ + uint8_t abIdentity[3]; + abIdentity[0] = lpIdentity[0]; + abIdentity[1] = lpIdentity[1]; + abIdentity[2] = lpIdentity[2]; + + abIdentity[0] ^= lpIntermediateKey[0]; + abIdentity[1] ^= lpIntermediateKey[3]; + abIdentity[2] ^= lpIntermediateKey[6]; + + transform_identity(abIdentity, abIdentity); + + abIdentity[0] ^= lpIntermediateKey[1]; + abIdentity[1] ^= lpIntermediateKey[4]; + abIdentity[2] ^= lpIntermediateKey[7]; + + transform_identity(abIdentity, abIdentity); + + abIdentity[0] ^= lpIntermediateKey[2]; + abIdentity[1] ^= lpIntermediateKey[5]; + abIdentity[2] ^= lpIntermediateKey[0]; + + lpEncIdentityOut[0] = abIdentity[0]; + lpEncIdentityOut[1] = abIdentity[1]; + lpEncIdentityOut[2] = abIdentity[2]; +} + +void ta61_inv(uint8_t *lpKey, uint8_t *lpIdentity, uint8_t *lpDecIdentityOut) +{ + uint8_t abIntermediateKey[8]; + ta61_compute_c(lpKey, abIntermediateKey); + ta61_inner_inv(abIntermediateKey, lpIdentity, lpDecIdentityOut); +} + +void ta61_inner_inv(uint8_t *lpIntermediateKey, uint8_t *lpIdentity, uint8_t *lpDecIdentityOut) +{ + uint8_t abIdentity[3]; + abIdentity[0] = lpIdentity[0]; + abIdentity[1] = lpIdentity[1]; + abIdentity[2] = lpIdentity[2]; + + abIdentity[0] ^= lpIntermediateKey[2]; + abIdentity[1] ^= lpIntermediateKey[5]; + abIdentity[2] ^= lpIntermediateKey[0]; + + transform_identity_inverse(abIdentity, abIdentity); + + abIdentity[0] ^= lpIntermediateKey[1]; + abIdentity[1] ^= lpIntermediateKey[4]; + abIdentity[2] ^= lpIntermediateKey[7]; + + transform_identity_inverse(abIdentity, abIdentity); + + abIdentity[0] ^= lpIntermediateKey[0]; + abIdentity[1] ^= lpIntermediateKey[3]; + abIdentity[2] ^= lpIntermediateKey[6]; + + lpDecIdentityOut[0] = abIdentity[0]; + lpDecIdentityOut[1] = abIdentity[1]; + lpDecIdentityOut[2] = abIdentity[2]; +} + void ta71(uint8_t *lpGck, uint8_t *lpCck, uint8_t *lpMgckOut) { uint8_t abCiphertext[16]; diff --git a/src/crypto/taa1.h b/src/crypto/taa1.h index 4baff6e..84d287e 100644 --- a/src/crypto/taa1.h +++ b/src/crypto/taa1.h @@ -36,6 +36,8 @@ void ta32(uint8_t *lpSealedCck, uint8_t *lpCckId, uint8_t *lpDck, uint8_t *lpUnsealedCckOut, uint8_t *lpMfOut); void ta51(uint8_t *lpUnsealed, uint8_t *lpVn, uint8_t *lpKey, uint8_t *lpKeyN, uint8_t *lpSealedOut); void ta52(uint8_t *lpSealed, uint8_t *lpKey, uint8_t *lpVn, uint8_t *lpUnsealedOut, uint8_t *lpMfOut, uint8_t *lpKeyNOut); +void ta61(const uint8_t *lpKey, const uint8_t *lpIdentity, uint8_t *lpEncIdentityOut); +void ta61_inv(uint8_t *lpKey, uint8_t *lpIdentity, uint8_t *lpDecIdentityOut); void ta71(uint8_t *lpGck, uint8_t *lpCck, uint8_t *lpMgckOut); void ta81(uint8_t *lpUnsealedGck, uint8_t *lpGckVn, uint8_t *lpGckN, uint8_t *lpKey, uint8_t *lpSealedGckOut); void ta82(uint8_t *lpSealedGck, uint8_t *lpGckVn, uint8_t *lpKey, uint8_t *lpUnsealedGckOut, uint8_t *lpMfOut, uint8_t *lpGckNOut); @@ -43,6 +45,13 @@ void ta92(uint8_t *lpSealedGsko, uint8_t *lpGskoVn, uint8_t *lpKey, uint8_t *lpUnsealedGskoOut, uint8_t *lpMfOut); /* + * TA61 internals + */ +void ta61_compute_c(const uint8_t *lpKey, uint8_t *lpIntermediateKeyOut); +void ta61_inner(const uint8_t *lpIntermediateKey, const uint8_t *lpIdentity, uint8_t *lpEncIdentityOut); +void ta61_inner_inv(uint8_t *lpIntermediateKey, uint8_t *lpIdentity, uint8_t *lpDecIdentityOut); + +/* * TBxx non-cryptographic primitives also used for authentication and key derivation */ void tb4(uint8_t *lpDck1, uint8_t *lpDck2, uint8_t *lpDckOut); -- To view, visit https://gerrit.osmocom.org/c/osmo-tetra/+/41683?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: osmo-tetra Gerrit-Branch: master Gerrit-Change-Id: I79e93d6863ab6c044a8e19bba85c7447095f5e11 Gerrit-Change-Number: 41683 Gerrit-PatchSet: 1 Gerrit-Owner: wbokslag <w.bokslag(a)midnightblue.nl>

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[XS] Change in osmo-tetra[master]: Added example keyfile
by wbokslag 16 Dec '25

16 Dec '25

wbokslag has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-tetra/+/41682?usp=email ) Change subject: Added example keyfile ...................................................................... Added example keyfile Added an example keyfile that people can use when trying to decrypt TEA-encrypted traffic. Note that a legitimate 80-bit key is needed. This is not a cracking tool. Change-Id: I7e13dcd10546e118e2cf9845f14121862db0cca9 --- A src/example_keyfile.txt 1 file changed, 2 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-tetra refs/changes/82/41682/1 diff --git a/src/example_keyfile.txt b/src/example_keyfile.txt new file mode 100644 index 0000000..93e2b06 --- /dev/null +++ b/src/example_keyfile.txt @@ -0,0 +1,2 @@ +network mcc 204 mnc 1337 ksg_type 1 security_class 2 +key mcc 204 mnc 1337 addr 00000000 key_type 1 key_num 1234 key 00112233445566778899 -- To view, visit https://gerrit.osmocom.org/c/osmo-tetra/+/41682?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: osmo-tetra Gerrit-Branch: master Gerrit-Change-Id: I7e13dcd10546e118e2cf9845f14121862db0cca9 Gerrit-Change-Number: 41682 Gerrit-PatchSet: 1 Gerrit-Owner: wbokslag <w.bokslag(a)midnightblue.nl>

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