Generated by Cython 0.24
Yellow lines hint at Python interaction.
Click on a line that starts with a "+" to see the C code that Cython generated for it.
Raw output: _cysrp.c
001: # N A large safe prime (N = 2q+1, where q is prime)
002: # All arithmetic is done modulo N.
003: # g A generator modulo N
004: # k Multiplier parameter (k = H(N, g) in SRP-6a, k = 3 for legacy SRP-6)
005: # s User's salt
006: # I Username
007: # p Cleartext Password
008: # H() One-way hash function
009: # ^ (Modular) Exponentiation
010: # u Random scrambling parameter
011: # a,b Secret ephemeral values
012: # A,B Public ephemeral values
013: # x Private key (derived from p and s)
014: # v Password verifier
015:
+016: import hashlib
__pyx_t_1 = __Pyx_Import(__pyx_n_s_hashlib, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 16, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_hashlib, __pyx_t_1) < 0) __PYX_ERR(0, 16, __pyx_L1_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+017: import os
__pyx_t_1 = __Pyx_Import(__pyx_n_s_os, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 17, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_os, __pyx_t_1) < 0) __PYX_ERR(0, 17, __pyx_L1_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+018: import binascii
__pyx_t_1 = __Pyx_Import(__pyx_n_s_binascii, 0, -1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 18, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); if (PyDict_SetItem(__pyx_d, __pyx_n_s_binascii, __pyx_t_1) < 0) __PYX_ERR(0, 18, __pyx_L1_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
019:
+020: SHA1 = 0
if (PyDict_SetItem(__pyx_d, __pyx_n_s_SHA1, __pyx_int_0) < 0) __PYX_ERR(0, 20, __pyx_L1_error)
+021: SHA224 = 1
if (PyDict_SetItem(__pyx_d, __pyx_n_s_SHA224, __pyx_int_1) < 0) __PYX_ERR(0, 21, __pyx_L1_error)
+022: SHA256 = 2
if (PyDict_SetItem(__pyx_d, __pyx_n_s_SHA256, __pyx_int_2) < 0) __PYX_ERR(0, 22, __pyx_L1_error)
+023: SHA384 = 3
if (PyDict_SetItem(__pyx_d, __pyx_n_s_SHA384, __pyx_int_3) < 0) __PYX_ERR(0, 23, __pyx_L1_error)
+024: SHA512 = 4
if (PyDict_SetItem(__pyx_d, __pyx_n_s_SHA512, __pyx_int_4) < 0) __PYX_ERR(0, 24, __pyx_L1_error)
025:
+026: NG_1024 = 0
if (PyDict_SetItem(__pyx_d, __pyx_n_s_NG_1024, __pyx_int_0) < 0) __PYX_ERR(0, 26, __pyx_L1_error)
+027: NG_2048 = 1
if (PyDict_SetItem(__pyx_d, __pyx_n_s_NG_2048, __pyx_int_1) < 0) __PYX_ERR(0, 27, __pyx_L1_error)
+028: NG_4096 = 2
if (PyDict_SetItem(__pyx_d, __pyx_n_s_NG_4096, __pyx_int_2) < 0) __PYX_ERR(0, 28, __pyx_L1_error)
+029: NG_8192 = 3
if (PyDict_SetItem(__pyx_d, __pyx_n_s_NG_8192, __pyx_int_3) < 0) __PYX_ERR(0, 29, __pyx_L1_error)
+030: NG_CUSTOM = 4
if (PyDict_SetItem(__pyx_d, __pyx_n_s_NG_CUSTOM, __pyx_int_4) < 0) __PYX_ERR(0, 30, __pyx_L1_error)
031:
+032: _hash_map = { SHA1 : hashlib.sha1,
__pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_SHA1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_hashlib); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_sha1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; if (PyDict_SetItem(__pyx_t_1, __pyx_t_2, __pyx_t_4) < 0) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+033: SHA224 : hashlib.sha224,
__pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_SHA224); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 33, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_hashlib); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 33, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_sha224); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 33, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; if (PyDict_SetItem(__pyx_t_1, __pyx_t_4, __pyx_t_3) < 0) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+034: SHA256 : hashlib.sha256,
__pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_SHA256); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 34, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_hashlib); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 34, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_sha256); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 34, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; if (PyDict_SetItem(__pyx_t_1, __pyx_t_3, __pyx_t_2) < 0) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+035: SHA384 : hashlib.sha384,
__pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_SHA384); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 35, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __pyx_t_3 = __Pyx_GetModuleGlobalName(__pyx_n_s_hashlib); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 35, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_sha384); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 35, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; if (PyDict_SetItem(__pyx_t_1, __pyx_t_2, __pyx_t_4) < 0) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+036: SHA512 : hashlib.sha512 }
__pyx_t_4 = __Pyx_GetModuleGlobalName(__pyx_n_s_SHA512); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 36, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_2 = __Pyx_GetModuleGlobalName(__pyx_n_s_hashlib); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 36, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_sha512); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 36, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_3); __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0; if (PyDict_SetItem(__pyx_t_1, __pyx_t_4, __pyx_t_3) < 0) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0; if (PyDict_SetItem(__pyx_d, __pyx_n_s_hash_map, __pyx_t_1) < 0) __PYX_ERR(0, 32, __pyx_L1_error) __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
037:
038:
039: _ng_const = (
040: # 1024-bit
+041: ('''\
__pyx_tuple__15 = PyTuple_Pack(2, __pyx_n_s_EEAF0AB9ADB38DD69C33F80AFA8FC5E8, __pyx_kp_s_2); if (unlikely(!__pyx_tuple__15)) __PYX_ERR(0, 41, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__15); __Pyx_GIVEREF(__pyx_tuple__15); /* … */ if (PyDict_SetItem(__pyx_d, __pyx_n_s_ng_const, __pyx_tuple__19) < 0) __PYX_ERR(0, 39, __pyx_L1_error) /* … */ __pyx_tuple__19 = PyTuple_Pack(4, __pyx_tuple__15, __pyx_tuple__16, __pyx_tuple__17, __pyx_tuple__18); if (unlikely(!__pyx_tuple__19)) __PYX_ERR(0, 41, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__19); __Pyx_GIVEREF(__pyx_tuple__19);
042: EEAF0AB9ADB38DD69C33F80AFA8FC5E86072618775FF3C0B9EA2314C9C256576D674DF7496\
043: EA81D3383B4813D692C6E0E0D5D8E250B98BE48E495C1D6089DAD15DC7D7B46154D6B6CE8E\
044: F4AD69B15D4982559B297BCF1885C529F566660E57EC68EDBC3C05726CC02FD4CBF4976EAA\
045: 9AFD5138FE8376435B9FC61D2FC0EB06E3''',
046: "2"),
047: # 2048
+048: ('''\
__pyx_tuple__16 = PyTuple_Pack(2, __pyx_n_s_AC6BDB41324A9A9BF166DE5E1389582F, __pyx_kp_s_2); if (unlikely(!__pyx_tuple__16)) __PYX_ERR(0, 48, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__16); __Pyx_GIVEREF(__pyx_tuple__16);
049: AC6BDB41324A9A9BF166DE5E1389582FAF72B6651987EE07FC3192943DB56050A37329CBB4\
050: A099ED8193E0757767A13DD52312AB4B03310DCD7F48A9DA04FD50E8083969EDB767B0CF60\
051: 95179A163AB3661A05FBD5FAAAE82918A9962F0B93B855F97993EC975EEAA80D740ADBF4FF\
052: 747359D041D5C33EA71D281E446B14773BCA97B43A23FB801676BD207A436C6481F1D2B907\
053: 8717461A5B9D32E688F87748544523B524B0D57D5EA77A2775D2ECFA032CFBDBF52FB37861\
054: 60279004E57AE6AF874E7303CE53299CCC041C7BC308D82A5698F3A8D0C38271AE35F8E9DB\
055: FBB694B5C803D89F7AE435DE236D525F54759B65E372FCD68EF20FA7111F9E4AFF73''',
056: "2"),
057: # 4096
+058: ('''\
__pyx_tuple__17 = PyTuple_Pack(2, __pyx_n_s_FFFFFFFFFFFFFFFFC90FDAA22168C234, __pyx_kp_s_5); if (unlikely(!__pyx_tuple__17)) __PYX_ERR(0, 58, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__17); __Pyx_GIVEREF(__pyx_tuple__17);
059: FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E08\
060: 8A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B\
061: 302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9\
062: A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE6\
063: 49286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8\
064: FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D\
065: 670C354E4ABC9804F1746C08CA18217C32905E462E36CE3BE39E772C\
066: 180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718\
067: 3995497CEA956AE515D2261898FA051015728E5A8AAAC42DAD33170D\
068: 04507A33A85521ABDF1CBA64ECFB850458DBEF0A8AEA71575D060C7D\
069: B3970F85A6E1E4C7ABF5AE8CDB0933D71E8C94E04A25619DCEE3D226\
070: 1AD2EE6BF12FFA06D98A0864D87602733EC86A64521F2B18177B200C\
071: BBE117577A615D6C770988C0BAD946E208E24FA074E5AB3143DB5BFC\
072: E0FD108E4B82D120A92108011A723C12A787E6D788719A10BDBA5B26\
073: 99C327186AF4E23C1A946834B6150BDA2583E9CA2AD44CE8DBBBC2DB\
074: 04DE8EF92E8EFC141FBECAA6287C59474E6BC05D99B2964FA090C3A2\
075: 233BA186515BE7ED1F612970CEE2D7AFB81BDD762170481CD0069127\
076: D5B05AA993B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199\
077: FFFFFFFFFFFFFFFF''',
078: "5"),
079: # 8192
+080: ('''\
__pyx_tuple__18 = PyTuple_Pack(2, __pyx_n_s_FFFFFFFFFFFFFFFFC90FDAA22168C234_2, __pyx_kp_s_0x13); if (unlikely(!__pyx_tuple__18)) __PYX_ERR(0, 80, __pyx_L1_error) __Pyx_GOTREF(__pyx_tuple__18); __Pyx_GIVEREF(__pyx_tuple__18);
081: FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E08\
082: 8A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B\
083: 302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9\
084: A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE6\
085: 49286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8\
086: FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D\
087: 670C354E4ABC9804F1746C08CA18217C32905E462E36CE3BE39E772C\
088: 180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718\
089: 3995497CEA956AE515D2261898FA051015728E5A8AAAC42DAD33170D\
090: 04507A33A85521ABDF1CBA64ECFB850458DBEF0A8AEA71575D060C7D\
091: B3970F85A6E1E4C7ABF5AE8CDB0933D71E8C94E04A25619DCEE3D226\
092: 1AD2EE6BF12FFA06D98A0864D87602733EC86A64521F2B18177B200C\
093: BBE117577A615D6C770988C0BAD946E208E24FA074E5AB3143DB5BFC\
094: E0FD108E4B82D120A92108011A723C12A787E6D788719A10BDBA5B26\
095: 99C327186AF4E23C1A946834B6150BDA2583E9CA2AD44CE8DBBBC2DB\
096: 04DE8EF92E8EFC141FBECAA6287C59474E6BC05D99B2964FA090C3A2\
097: 233BA186515BE7ED1F612970CEE2D7AFB81BDD762170481CD0069127\
098: D5B05AA993B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934028492\
099: 36C3FAB4D27C7026C1D4DCB2602646DEC9751E763DBA37BDF8FF9406\
100: AD9E530EE5DB382F413001AEB06A53ED9027D831179727B0865A8918\
101: DA3EDBEBCF9B14ED44CE6CBACED4BB1BDB7F1447E6CC254B33205151\
102: 2BD7AF426FB8F401378CD2BF5983CA01C64B92ECF032EA15D1721D03\
103: F482D7CE6E74FEF6D55E702F46980C82B5A84031900B1C9E59E7C97F\
104: BEC7E8F323A97A7E36CC88BE0F1D45B7FF585AC54BD407B22B4154AA\
105: CC8F6D7EBF48E1D814CC5ED20F8037E0A79715EEF29BE32806A1D58B\
106: B7C5DA76F550AA3D8A1FBFF0EB19CCB1A313D55CDA56C9EC2EF29632\
107: 387FE8D76E3C0468043E8F663F4860EE12BF2D5B0B7474D6E694F91E\
108: 6DBE115974A3926F12FEE5E438777CB6A932DF8CD8BEC4D073B931BA\
109: 3BC832B68D9DD300741FA7BF8AFC47ED2576F6936BA424663AAB639C\
110: 5AE4F5683423B4742BF1C978238F16CBE39D652DE3FDB8BEFC848AD9\
111: 22222E04A4037C0713EB57A81A23F0C73473FC646CEA306B4BCBC886\
112: 2F8385DDFA9D4B7FA2C087E879683303ED5BDD3A062B3CF5B3A278A6\
113: 6D2A13F83F44F82DDF310EE074AB6A364597E899A0255DC164F31CC5\
114: 0846851DF9AB48195DED7EA1B1D510BD7EE74D73FAF36BC31ECFA268\
115: 359046F4EB879F924009438B481C6CD7889A002ED5EE382BC9190DA6\
116: FC026E479558E4475677E9AA9E3050E2765694DFC81F56E880B96E71\
117: 60C980DD98EDD3DFFFFFFFFFFFFFFFFF''',
118: '0x13')
119: )
120:
+121: def get_ng( ng_type, n_hex, g_hex ):
/* Python wrapper */
static PyObject *__pyx_pw_5pysrp_3srp_6_cysrp_1get_ng(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static PyMethodDef __pyx_mdef_5pysrp_3srp_6_cysrp_1get_ng = {"get_ng", (PyCFunction)__pyx_pw_5pysrp_3srp_6_cysrp_1get_ng, METH_VARARGS|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_5pysrp_3srp_6_cysrp_1get_ng(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
PyObject *__pyx_v_ng_type = 0;
PyObject *__pyx_v_n_hex = 0;
PyObject *__pyx_v_g_hex = 0;
PyObject *__pyx_r = 0;
__Pyx_RefNannyDeclarations
__Pyx_RefNannySetupContext("get_ng (wrapper)", 0);
{
static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_ng_type,&__pyx_n_s_n_hex,&__pyx_n_s_g_hex,0};
PyObject* values[3] = {0,0,0};
if (unlikely(__pyx_kwds)) {
Py_ssize_t kw_args;
const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
switch (pos_args) {
case 3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
case 2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
case 1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
case 0: break;
default: goto __pyx_L5_argtuple_error;
}
kw_args = PyDict_Size(__pyx_kwds);
switch (pos_args) {
case 0:
if (likely((values[0] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_ng_type)) != 0)) kw_args--;
else goto __pyx_L5_argtuple_error;
case 1:
if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_n_hex)) != 0)) kw_args--;
else {
__Pyx_RaiseArgtupleInvalid("get_ng", 1, 3, 3, 1); __PYX_ERR(0, 121, __pyx_L3_error)
}
case 2:
if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_g_hex)) != 0)) kw_args--;
else {
__Pyx_RaiseArgtupleInvalid("get_ng", 1, 3, 3, 2); __PYX_ERR(0, 121, __pyx_L3_error)
}
}
if (unlikely(kw_args > 0)) {
if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "get_ng") < 0)) __PYX_ERR(0, 121, __pyx_L3_error)
}
} else if (PyTuple_GET_SIZE(__pyx_args) != 3) {
goto __pyx_L5_argtuple_error;
} else {
values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
}
__pyx_v_ng_type = values[0];
__pyx_v_n_hex = values[1];
__pyx_v_g_hex = values[2];
}
goto __pyx_L4_argument_unpacking_done;
__pyx_L5_argtuple_error:;
__Pyx_RaiseArgtupleInvalid("get_ng", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 121, __pyx_L3_error)
__pyx_L3_error:;
__Pyx_AddTraceback("pysrp.srp._cysrp.get_ng", __pyx_clineno, __pyx_lineno, __pyx_filename);
__Pyx_RefNannyFinishContext();
return NULL;
__pyx_L4_argument_unpacking_done:;
__pyx_r = __pyx_pf_5pysrp_3srp_6_cysrp_get_ng(__pyx_self, __pyx_v_ng_type, __pyx_v_n_hex, __pyx_v_g_hex);
/* function exit code */
__Pyx_RefNannyFinishContext();
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188:
189:
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192:
193:
194:
195:
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206:
207:
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