Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename: /in/HUNud
function name: (null)
number of ops: 29
compiled vars: !0 = $key, !1 = $ekey
line #* E I O op fetch ext return operands
-------------------------------------------------------------------------------------
3 0 E > DECLARE_CONST 'CIPHER', <const ast>
4 1 DECLARE_CONST 'KEY_BYTE_SIZE', 16
5 2 DECLARE_CONST 'CIPHER_MODE', 'cbc'
6 3 DECLARE_CONST 'HASH_FUNCTION', 'sha256'
7 4 DECLARE_CONST 'MAC_BYTE_SIZE', 32
8 5 DECLARE_CONST 'ENCRYPTION_INFO', 'PIPS%7CKeyForEncryption'
9 6 DECLARE_CONST 'AUTHENTICATION_INFO', 'PIPS%7CKeyForAuthentication'
11 7 INIT_FCALL 'base64_decode'
8 SEND_VAL 'wdmd3XIhnOAelom4Y8yPbw%3D%3D'
9 DO_ICALL $2
10 ASSIGN !0, $2
12 11 INIT_FCALL_BY_NAME 'HKDF'
12 FETCH_CONSTANT ~4 'HASH_FUNCTION'
13 SEND_VAL_EX ~4
14 SEND_VAR_EX !0
15 FETCH_CONSTANT ~5 'KEY_BYTE_SIZE'
16 SEND_VAL_EX ~5
17 FETCH_CONSTANT ~6 'ENCRYPTION_INFO'
18 SEND_VAL_EX ~6
19 DO_FCALL 0 $7
20 ASSIGN !1, $7
13 21 NOP
22 FAST_CONCAT ~9 !1, '%0A'
23 ECHO ~9
14 24 INIT_FCALL_BY_NAME 'urlsafe_b64encode'
25 SEND_VAR_EX !1
26 DO_FCALL 0 $10
27 ECHO $10
81 28 > RETURN 1
Function urlsafe_b64encode:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename: /in/HUNud
function name: urlsafe_b64encode
number of ops: 13
compiled vars: !0 = $string, !1 = $data
line #* E I O op fetch ext return operands
-------------------------------------------------------------------------------------
16 0 E > RECV !0
17 1 INIT_FCALL 'base64_encode'
2 SEND_VAR !0
3 DO_ICALL $2
4 ASSIGN !1, $2
18 5 INIT_FCALL 'str_replace'
6 SEND_VAL <array>
7 SEND_VAL <array>
8 SEND_VAR !1
9 DO_ICALL $4
10 ASSIGN !1, $4
19 11 > RETURN !1
20 12* > RETURN null
End of function urlsafe_b64encode
Function hkdf:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 18
Branch analysis from position: 10
2 jumps found. (Code = 47) Position 1 = 20, Position 2 = 23
Branch analysis from position: 20
2 jumps found. (Code = 47) Position 1 = 24, Position 2 = 26
Branch analysis from position: 24
2 jumps found. (Code = 47) Position 1 = 27, Position 2 = 30
Branch analysis from position: 27
2 jumps found. (Code = 43) Position 1 = 31, Position 2 = 34
Branch analysis from position: 31
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 34
2 jumps found. (Code = 43) Position 1 = 36, Position 2 = 41
Branch analysis from position: 36
2 jumps found. (Code = 43) Position 1 = 51, Position 2 = 54
Branch analysis from position: 51
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 54
1 jumps found. (Code = 42) Position 1 = 80
Branch analysis from position: 80
2 jumps found. (Code = 44) Position 1 = 83, Position 2 = 60
Branch analysis from position: 83
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 60
2 jumps found. (Code = 44) Position 1 = 83, Position 2 = 60
Branch analysis from position: 83
Branch analysis from position: 60
Branch analysis from position: 41
Branch analysis from position: 30
Branch analysis from position: 26
Branch analysis from position: 23
Branch analysis from position: 18
filename: /in/HUNud
function name: HKDF
number of ops: 97
compiled vars: !0 = $hash, !1 = $ikm, !2 = $length, !3 = $info, !4 = $salt, !5 = $digest_length, !6 = $prk, !7 = $t, !8 = $last_block, !9 = $record, !10 = $iterations, !11 = $block_index, !12 = $orm
line #* E I O op fetch ext return operands
-------------------------------------------------------------------------------------
22 0 E > RECV !0
1 RECV !1
2 RECV !2
3 RECV_INIT !3 ''
4 RECV_INIT !4 null
25 5 FETCH_CONSTANT ~13 'MAC_BYTE_SIZE'
6 ASSIGN !5, ~13
26 7 FETCH_CONSTANT ~15 'HASH_FUNCTION'
8 IS_NOT_EQUAL !0, ~15
9 > JMPZ ~16, ->18
27 10 > INIT_FCALL 'hash_hmac'
11 SEND_VAR !0
12 SEND_VAL ''
13 SEND_VAL ''
14 SEND_VAL <true>
15 DO_ICALL $17
16 STRLEN ~18 $17
17 ASSIGN !5, ~18
31 18 > ISSET_ISEMPTY_CV ~20 !2
19 > JMPNZ_EX ~20 ~20, ->23
20 > TYPE_CHECK 16 ~21 !2
21 BOOL_NOT ~22 ~21
22 BOOL ~20 ~22
23 > > JMPNZ_EX ~20 ~20, ->26
32 24 > IS_SMALLER ~23 !2, 0
25 BOOL ~20 ~23
26 > > JMPNZ_EX ~20 ~20, ->30
27 > MUL ~24 !5, 255
28 IS_SMALLER ~25 ~24, !2
29 BOOL ~20 ~25
30 > > JMPZ ~20, ->34
33 31 > INIT_FCALL_BY_NAME 'CannotPerformOperationException'
32 DO_FCALL 0 $26
33 > RETURN $26
37 34 > TYPE_CHECK 2 !4
35 > JMPZ ~27, ->41
38 36 > INIT_FCALL 'str_repeat'
37 SEND_VAL '%00'
38 SEND_VAR !5
39 DO_ICALL $28
40 ASSIGN !4, $28
44 41 > INIT_FCALL 'hash_hmac'
42 SEND_VAR !0
43 SEND_VAR !1
44 SEND_VAR !4
45 SEND_VAL <true>
46 DO_ICALL $30
47 ASSIGN !6, $30
49 48 STRLEN ~32 !6
49 IS_SMALLER ~32, !5
50 > JMPZ ~33, ->54
50 51 > NEW $34 'CannotPerformOperationException'
52 DO_FCALL 0
53 > THROW 0 $34
54 54 > ASSIGN !7, ''
55 55 ASSIGN !8, ''
56 56 ASSIGN !9, ''
57 57 ASSIGN !10, 0
58 58 ASSIGN !11, 1
59 > JMP ->80
60 60 > INIT_FCALL 'hash_hmac'
61 61 SEND_VAR !0
62 62 CONCAT ~41 !8, !3
63 INIT_FCALL 'chr'
64 SEND_VAR !11
65 DO_ICALL $42
66 CONCAT ~43 ~41, $42
67 SEND_VAL ~43
63 68 SEND_VAR !6
64 69 SEND_VAL <true>
70 DO_ICALL $44
60 71 ASSIGN !8, $44
66 72 INIT_FCALL 'urlsafe_b64encode'
73 SEND_VAR !8
74 DO_FCALL 0 $46
75 CONCAT ~47 $46, '%0A'
76 ASSIGN_OP 8 !9, ~47
67 77 PRE_INC !10
69 78 ASSIGN_OP 8 !7, !8
58 79 PRE_INC !11
80 > STRLEN ~52 !7
81 IS_SMALLER ~52, !2
82 > JMPNZ ~53, ->60
72 83 > > RETURN !10
75 84* INIT_FCALL 'substr'
85* SEND_VAR !7
86* SEND_VAL 0
87* SEND_VAR !2
88* DO_ICALL $54
89* ASSIGN !12, $54
76 90* TYPE_CHECK 4 !12
91* JMPZ ~56, ->95
77 92* NEW $57 'CannotPerformOperationException'
93* DO_FCALL 0
94* THROW 0 $57
79 95* RETURN !12
80 96* > RETURN null
End of function hkdf
Generated using Vulcan Logic Dumper, using php 8.0.0