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-rw-r--r--src/identity-provider/jwt.c191
1 files changed, 0 insertions, 191 deletions
diff --git a/src/identity-provider/jwt.c b/src/identity-provider/jwt.c
deleted file mode 100644
index ff3676cb6..000000000
--- a/src/identity-provider/jwt.c
+++ /dev/null
@@ -1,191 +0,0 @@
1/*
2 This file is part of GNUnet
3 Copyright (C) 2010-2015 GNUnet e.V.
4
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
19 */
20
21/**
22 * @file identity-provider/jwt.c
23 * @brief helper library for JSON-Web-Tokens
24 * @author Martin Schanzenbach
25 */
26#include "platform.h"
27#include "gnunet_util_lib.h"
28#include "gnunet_signatures.h"
29#include "gnunet_identity_attribute_lib.h"
30#include <jansson.h>
31
32
33#define JWT_ALG "alg"
34
35/*TODO is this the correct way to define new algs? */
36#define JWT_ALG_VALUE "urn:org:gnunet:jwt:alg:ecdsa:ed25519"
37
38#define JWT_TYP "typ"
39
40#define JWT_TYP_VALUE "jwt"
41
42//TODO change server address
43#define SERVER_ADDRESS "https://localhost"
44
45static char*
46create_jwt_header(void)
47{
48 json_t *root;
49 char *json_str;
50
51 root = json_object ();
52 json_object_set_new (root, JWT_ALG, json_string (JWT_ALG_VALUE));
53 json_object_set_new (root, JWT_TYP, json_string (JWT_TYP_VALUE));
54
55 json_str = json_dumps (root, JSON_INDENT(1));
56 json_decref (root);
57 return json_str;
58}
59
60/**
61 * Create a JWT from attributes
62 *
63 * @param aud_key the public of the subject
64 * @param attrs the attribute list
65 * @param priv_key the key used to sign the JWT
66 * @return a new base64-encoded JWT string.
67 */
68char*
69jwt_create_from_list (const struct GNUNET_CRYPTO_EcdsaPublicKey *aud_key,
70 const struct GNUNET_IDENTITY_ATTRIBUTE_ClaimList *attrs,
71 const struct GNUNET_CRYPTO_EcdsaPrivateKey *priv_key)
72{
73 struct GNUNET_IDENTITY_ATTRIBUTE_ClaimListEntry *le;
74 struct GNUNET_CRYPTO_EcdsaPublicKey sub_key;
75 struct GNUNET_CRYPTO_EcdsaSignature signature;
76 struct GNUNET_CRYPTO_EccSignaturePurpose *purpose;
77 char* audience;
78 char* subject;
79 char* header;
80 char* padding;
81 char* body_str;
82 char* result;
83 char* header_base64;
84 char* body_base64;
85 char* signature_target;
86 char* signature_base64;
87 char* attr_val_str;
88 json_t* body;
89
90 //exp REQUIRED time expired from config
91 //iat REQUIRED time now
92 //auth_time only if max_age
93 //nonce only if nonce
94 // OPTIONAL acr,amr,azp
95 GNUNET_CRYPTO_ecdsa_key_get_public (priv_key, &sub_key);
96 /* TODO maybe we should use a local identity here */
97 subject = GNUNET_STRINGS_data_to_string_alloc (&sub_key,
98 sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey));
99 audience = GNUNET_STRINGS_data_to_string_alloc (aud_key,
100 sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey));
101 header = create_jwt_header ();
102 body = json_object ();
103 /* TODO who is the issuer? local IdP or subject ? See self-issued tokens? */
104 //iss REQUIRED case sensitive server uri with https
105 json_object_set_new (body,
106 "iss", json_string (SERVER_ADDRESS));
107 //sub REQUIRED public key identity, not exceed 255 ASCII length
108 json_object_set_new (body,
109 "sub", json_string (subject));
110 /* TODO what should be in here exactly? */
111 //aud REQUIRED public key client_id must be there
112 json_object_set_new (body,
113 "aud", json_string (audience));
114 for (le = attrs->list_head; NULL != le; le = le->next)
115 {
116 /**
117 * TODO here we should have a function that
118 * calls the Attribute plugins to create a
119 * json representation for its value
120 */
121 attr_val_str = GNUNET_IDENTITY_ATTRIBUTE_value_to_string (le->claim->type,
122 le->claim->data,
123 le->claim->data_size);
124 json_object_set_new (body,
125 le->claim->name,
126 json_string (attr_val_str));
127 GNUNET_free (attr_val_str);
128 }
129 body_str = json_dumps (body, JSON_INDENT(0));
130 json_decref (body);
131
132 GNUNET_STRINGS_base64_encode (header,
133 strlen (header),
134 &header_base64);
135 //Remove GNUNET padding of base64
136 padding = strtok(header_base64, "=");
137 while (NULL != padding)
138 padding = strtok(NULL, "=");
139
140 GNUNET_STRINGS_base64_encode (body_str,
141 strlen (body_str),
142 &body_base64);
143
144 //Remove GNUNET padding of base64
145 padding = strtok(body_base64, "=");
146 while (NULL != padding)
147 padding = strtok(NULL, "=");
148
149 GNUNET_free (subject);
150 GNUNET_free (audience);
151
152 /**
153 * TODO
154 * Creating the JWT signature. This might not be
155 * standards compliant, check.
156 */
157 GNUNET_asprintf (&signature_target, "%s,%s", header_base64, body_base64);
158
159 purpose =
160 GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose) +
161 strlen (signature_target));
162 purpose->size =
163 htonl (strlen (signature_target) + sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose));
164 purpose->purpose = htonl(GNUNET_SIGNATURE_PURPOSE_GNUID_TOKEN);
165 GNUNET_memcpy (&purpose[1], signature_target, strlen (signature_target));
166 if (GNUNET_OK != GNUNET_CRYPTO_ecdsa_sign (priv_key,
167 purpose,
168 (struct GNUNET_CRYPTO_EcdsaSignature *)&signature))
169 {
170 GNUNET_free (signature_target);
171 GNUNET_free (body_str);
172 GNUNET_free (body_base64);
173 GNUNET_free (header_base64);
174 GNUNET_free (purpose);
175 return NULL;
176 }
177 GNUNET_STRINGS_base64_encode ((const char*)&signature,
178 sizeof (struct GNUNET_CRYPTO_EcdsaSignature),
179 &signature_base64);
180 GNUNET_asprintf (&result, "%s.%s.%s",
181 header_base64, body_base64, signature_base64);
182
183 GNUNET_free (signature_target);
184 GNUNET_free (header);
185 GNUNET_free (body_str);
186 GNUNET_free (signature_base64);
187 GNUNET_free (body_base64);
188 GNUNET_free (header_base64);
189 GNUNET_free (purpose);
190 return result;
191}
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