This file is indexed.

/usr/include/cjose/header.h is in libcjose-dev 0.4.1-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 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
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
/*
 * Copyrights
 *
 * Portions created or assigned to Cisco Systems, Inc. are
 * Copyright (c) 2014-2016 Cisco Systems, Inc.  All Rights Reserved.
 */

/**
 * \file
 * \brief
 * Functions and data structures for interacting with
 * JSON Web Signature (JWS) objects.
 *
 */

#ifndef CJOSE_HEADER_H
#define CJOSE_HEADER_H

#include <stdbool.h>
#include "cjose/error.h"

#ifdef __cplusplus
extern "C"
{
#endif


/** The JWE algorithm header attribute name. */
extern const char *CJOSE_HDR_ALG;

/** The JWE content encryption algorithm header attribute name. */
extern const char *CJOSE_HDR_ENC;

/** The JWE "cty" header attribute. */
extern const char *CJOSE_HDR_CTY;

/** The Jose "kid" header attribute. */
extern const char *CJOSE_HDR_KID;

/** The JWA algorithm attribute value for none. */
extern const char *CJOSE_HDR_ALG_NONE;

/** The JWE algorithm attribute value for RSA-OAEP. */
extern const char *CJOSE_HDR_ALG_RSA_OAEP;

/** The JWE algorithm attribute value for RSA1_5. */
extern const char *CJOSE_HDR_ALG_RSA1_5;

/** The JWE algorithm attribute value for A128KW, A192KW and A256KW. */
extern const char *CJOSE_HDR_ALG_A128KW;
extern const char *CJOSE_HDR_ALG_A192KW;
extern const char *CJOSE_HDR_ALG_A256KW;

/** The JWS algorithm attribute value for PS256, PS384 and PS512. */
extern const char *CJOSE_HDR_ALG_PS256;
extern const char *CJOSE_HDR_ALG_PS384;
extern const char *CJOSE_HDR_ALG_PS512;

/** The JWS algorithm attribute value for RS256, RS384 and RS512. */
extern const char *CJOSE_HDR_ALG_RS256;
extern const char *CJOSE_HDR_ALG_RS384;
extern const char *CJOSE_HDR_ALG_RS512;

/** The JWS algorithm attribute values for HS256, HS384 and HS512. */
extern const char *CJOSE_HDR_ALG_HS256;
extern const char *CJOSE_HDR_ALG_HS384;
extern const char *CJOSE_HDR_ALG_HS512;

/** The JWS algorithm attribute values for ES256, ES384 and ES512. */
extern const char *CJOSE_HDR_ALG_ES256;
extern const char *CJOSE_HDR_ALG_ES384;
extern const char *CJOSE_HDR_ALG_ES512;

/** The JWE algorithm attribute value for "dir". */
extern const char *CJOSE_HDR_ALG_DIR;

/** The JWE content encryption algorithm value for A256GCM. */
extern const char *CJOSE_HDR_ENC_A256GCM;

/** The JWE content encryption algorithm value for A128CBC-HS256, A192CBC-HS384 and A256CBC-HS512. */
extern const char *CJOSE_HDR_ENC_A128CBC_HS256;
extern const char *CJOSE_HDR_ENC_A192CBC_HS384;
extern const char *CJOSE_HDR_ENC_A256CBC_HS512;


/**
 * An instance of a header object (used when creating JWE/JWS objects).
 */
typedef struct json_t cjose_header_t;


/**
 * Instsantiates a new header object. Caller is responsible for
 * subsequently releasing the object through cjose_header_release().
 *
 * \param err [out] An optional error object which can be used to get additional
 *        information in the event of an error.
 * \returns a newly allocated header object, or NULL if an error occurs.
 */
cjose_header_t *cjose_header_new(
        cjose_err *err);


/**
 * Retains an existing header object. Callers must use this method if the
 * header will be used past the scope it was created in (e.g., from a
 * `cjose_jws_t` object).
 *
 * \param header[in] the header object to be retained.
 * \returns the retained header object
 */
cjose_header_t *cjose_header_retain(
        cjose_header_t *header);

/**
 * Releases an existing header object. Callers must use this method
 * to dispose of header rather than directly free'ing a cjose_header
 * object.
 *
 * \param header[in] the header object to be released.
 */
void cjose_header_release(
		cjose_header_t *header);


/**
 * Sets a header attribute on a header object.  If that header was
 * previously set, this will replace the previous value with the new one.
 *
 * \param header[in] a previously instantated header object.
 * \param attr[in] the header attribute to be set.
 * \param value[in] the value to assign to the header attribute.
 * \param err [out] An optional error object which can be used to get additional
 *        information in the event of an error.
 * \returns true if header is successfully set.
 */
bool cjose_header_set(
        cjose_header_t *header,
        const char *attr,
        const char *value,
        cjose_err *err);

/**
 * Retrieves the value of the requested header attribute from the header
 * object.
 *
 * \param header[in] a header object.
 * \param attr[in] the header attribute to be got.
 * \param err [out] An optional error object which can be used to get additional
 *        information in the event of an error.
 * \returns a string containing the current value for the requested attribute.
 */
const char *cjose_header_get(
        cjose_header_t *header,
        const char *attr,
        cjose_err *err);


#ifdef __cplusplus
}
#endif

#endif  // CJOSE_HEADER_H