libsecurity_keychain/lib/SecCertificate.h

   1 /*
   2  * Copyright (c) 2002-2010 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*!
  25         @header SecCertificate
  26         The functions provided in SecCertificate implement and manage a particular type of keychain item that represents a certificate.  You can store a certificate in a keychain, but a certificate can also be a transient object.
  27
  28         You can use a certificate as a keychain item in most functions.
  29 */
  30
  31 #ifndef _SECURITY_SECCERTIFICATE_H_
  32 #define _SECURITY_SECCERTIFICATE_H_
  33
  34 #include <CoreFoundation/CFBase.h>
  35 #include <CoreFoundation/CFArray.h>
  36 #include <CoreFoundation/CFData.h>
  37 #include <CoreFoundation/CFDate.h>
  38 #include <CoreFoundation/CFError.h>
  39 #include <Security/SecBase.h>
  40 #include <Security/cssmtype.h>
  41 #include <Security/x509defs.h>
  42 #include <Availability.h>
  43 #include <AvailabilityMacros.h>
  44 /*
  45 #include <Security/SecTransform.h>
  46 #include <Security/SecIdentity.h>
  47 */
  48
  49 #if defined(__cplusplus)
  50 extern "C" {
  51 #endif
  52
  53 /*!
  54         @enum CertificateItemAttributes
  55         @abstract Indicates the type of a certificate item attribute.
  56         @constant kSecSubjectItemAttr Indicates a DER-encoded subject distinguished name.
  57         @constant kSecIssuerItemAttr Indicates a DER-encoded issuer distinguished name.
  58         @constant kSecSerialNumberItemAttr Indicates a DER-encoded certificate serial number (without the tag and length).
  59         @constant kSecPublicKeyHashItemAttr Indicates a public key hash.
  60         @constant kSecSubjectKeyIdentifierItemAttr Indicates a subject key identifier.
  61         @constant kSecCertTypeItemAttr Indicates a certificate type.
  62         @constant kSecCertEncodingItemAttr Indicates a certificate encoding.
  63 */
  64 enum
  65 {
  66     kSecSubjectItemAttr                          = 'subj',
  67     kSecIssuerItemAttr                           = 'issu',
  68     kSecSerialNumberItemAttr             = 'snbr',
  69     kSecPublicKeyHashItemAttr            = 'hpky',
  70     kSecSubjectKeyIdentifierItemAttr = 'skid',
  71         kSecCertTypeItemAttr                     = 'ctyp',
  72         kSecCertEncodingItemAttr                 = 'cenc'
  73 } /*DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER*/;
  74
  75 /*!
  76         @function SecCertificateGetTypeID
  77         @abstract Returns the type identifier of SecCertificate instances.
  78         @result The CFTypeID of SecCertificate instances.
  79 */
  80 CFTypeID SecCertificateGetTypeID(void)
  81         __OSX_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_2_0);
  82
  83 #pragma mark ---- Certificate Operations ----
  84
  85 /*!
  86         @function SecCertificateCreateFromData
  87         @abstract Creates a certificate based on the input data, type, and encoding.
  88     @param data A pointer to the certificate data.
  89     @param type The certificate type as defined in cssmtype.h.
  90     @param encoding The certificate encoding as defined in cssmtype.h.
  91         @param certificate On return, a reference to the newly created certificate.
  92     @result A result code. See "Security Error Codes" (SecBase.h).
  93         @discussion This API is deprecated in 10.7  Please use the SecCertificateCreateWithData API instead.
  94 */
  95 OSStatus SecCertificateCreateFromData(const CSSM_DATA *data, CSSM_CERT_TYPE type, CSSM_CERT_ENCODING encoding, SecCertificateRef *certificate)
  96         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
  97
  98 /*!
  99         @function SecCertificateCreateWithData
 100         @abstract Create a certificate reference given its DER representation as a CFData.
 101     @param allocator CFAllocator to allocate the certificate data. Pass NULL to use the default allocator.
 102     @param certificate DER encoded X.509 certificate.
 103         @result On return, a reference to the certificate. Returns NULL if the passed-in data is not a valid DER-encoded X.509 certificate.
 104 */
 105 SecCertificateRef SecCertificateCreateWithData(CFAllocatorRef allocator, CFDataRef data)
 106         __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_2_0);
 107
 108 /*!
 109         @function SecCertificateAddToKeychain
 110         @abstract Adds a certificate to the specified keychain.
 111     @param certificate A reference to a certificate.
 112     @param keychain A reference to the keychain in which to add the certificate. Pass NULL to add the certificate to the default keychain.
 113     @result A result code. See "Security Error Codes" (SecBase.h).
 114         @discussion This function is successful only if the certificate was created using the SecCertificateCreateFromData or
 115         SecCertificateCreateWithData functions, and the certificate has not yet been added to the specified keychain.
 116 */
 117 OSStatus SecCertificateAddToKeychain(SecCertificateRef certificate, SecKeychainRef keychain)
 118         __OSX_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_NA);
 119
 120 /*!
 121         @function SecCertificateGetData
 122         @abstract Retrieves the data for a given certificate.
 123     @param certificate A reference to the certificate from which to retrieve the data.
 124     @param data On return, the CSSM_DATA structure pointed to by data is filled in. You must allocate the space for a CSSM_DATA structure before calling this function. This data pointer is only guaranteed to remain valid as long as the certificate remains unchanged and valid.
 125         @result A result code. See "Security Error Codes" (SecBase.h).
 126         @discussion This API is deprecated in 10.7. Please use the SecCertificateCopyData API instead.
 127 */
 128 OSStatus SecCertificateGetData(SecCertificateRef certificate, CSSM_DATA_PTR data)
 129         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
 130
 131 /*!
 132         @function SecCertificateCopyData
 133         @abstract Returns the DER representation of an X.509 certificate.
 134     @param certificate A reference to a certificate.
 135         @result On return, a data reference containing the DER encoded representation of the X.509 certificate.
 136 */
 137 CFDataRef SecCertificateCopyData(SecCertificateRef certificate)
 138         __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_2_0);
 139
 140 /*!
 141         @function SecCertificateGetType
 142         @abstract Retrieves the type for a given certificate.
 143     @param certificate A reference to the certificate from which to obtain the type.
 144     @param certificateType On return, the certificate type of the certificate. Certificate types are defined in cssmtype.h.
 145         @result A result code. See "Security Error Codes" (SecBase.h).
 146         @discussion This API is deprecated in 10.7. Please use the SecCertificateCopyValues API instead.
 147 */
 148 OSStatus SecCertificateGetType(SecCertificateRef certificate, CSSM_CERT_TYPE *certificateType)
 149         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
 150
 151 /*!
 152     @function SecCertificateGetSubject
 153     @abstract Retrieves the subject name for a given certificate.
 154     @param certificate A reference to the certificate from which to obtain the subject name.
 155     @param subject On return, a pointer to a CSSM_X509_NAME struct which contains the subject's X.509 name (x509defs.h). This pointer remains valid until the certificate reference is released. The caller should not attempt to free this pointer.
 156     @result A result code. See "Security Error Codes" (SecBase.h).
 157     @discussion Prior to Mac OS X 10.5, this function did not return any output in the subject parameter. Your code should check the returned pointer value (in addition to the function result) before attempting to use it.
 158         For example:
 159         const CSSM_X509_NAME *subject = NULL;
 160         OSStatus status = SecCertificateGetSubject(certificate, &subject);
 161         if ( (status == noErr) && (subject != NULL) ) {
 162             // subject is valid
 163         }
 164            This API is deprecated in 10.7. Please use the SecCertificateCopyValues API instead.
 165 */
 166 OSStatus SecCertificateGetSubject(SecCertificateRef certificate, const CSSM_X509_NAME **subject)
 167         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
 168
 169 /*!
 170     @function SecCertificateGetIssuer
 171     @abstract Retrieves the issuer name for a given certificate.
 172     @param certificate A reference to the certificate from which to obtain the issuer name.
 173     @param issuer On return, a pointer to a CSSM_X509_NAME struct which contains the issuer's X.509 name (x509defs.h). This pointer remains valid until the certificate reference is released. The caller should not attempt to free this pointer.
 174     @result A result code. See "Security Error Codes" (SecBase.h).
 175     @discussion Prior to Mac OS X 10.5, this function did not return any output in the issuer parameter. Your code should check the returned pointer value (in addition to the function result) before attempting to use it.
 176         For example:
 177         const CSSM_X509_NAME *issuer = NULL;
 178         OSStatus status = SecCertificateGetIssuer(certificate, &issuer);
 179         if ( (status == noErr) && (issuer != NULL) ) {
 180             // issuer is valid
 181         }
 182                 This API is deprecated in 10.7. Please use the SecCertificateCopyValues API instead.
 183 */
 184 OSStatus SecCertificateGetIssuer(SecCertificateRef certificate, const CSSM_X509_NAME **issuer)
 185         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
 186
 187 /*!
 188     @function SecCertificateGetCLHandle
 189     @abstract Retrieves the certificate library handle for a given certificate.
 190     @param certificate A reference to the certificate from which to obtain the certificate library handle.
 191     @param clHandle On return, the certificate library handle of the given certificate. This handle remains valid at least as long as the certificate does.
 192     @result A result code. See "Security Error Codes" (SecBase.h).
 193         @discussion This API is deprecated in 10.7. Please use the SecCertificateCopyValues API instead.
 194 */
 195 OSStatus SecCertificateGetCLHandle(SecCertificateRef certificate, CSSM_CL_HANDLE *clHandle)
 196         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
 197
 198 /*!
 199     @function SecCertificateGetAlgorithmID
 200     @abstract Retrieves the algorithm identifier for a given certificate.
 201     @param certificate A reference to the certificate from which to retrieve the algorithm identifier.
 202     @param algid On return, a pointer to a CSSM_X509_ALGORITHM_IDENTIFIER struct which identifies the algorithm for this certificate (x509defs.h). This pointer remains valid until the certificate reference is released. The caller should not attempt to free this pointer.
 203     @result A result code. See "Security Error Codes" (SecBase.h).
 204         discussion This API is deprecated in 10.7. Please use the SecCertificateCopyValues API instead.
 205 */
 206 OSStatus SecCertificateGetAlgorithmID(SecCertificateRef certificate, const CSSM_X509_ALGORITHM_IDENTIFIER **algid)
 207         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
 208
 209 /*!
 210     @function SecCertificateCopyPublicKey
 211     @abstract Retrieves the public key for a given certificate.
 212     @param certificate A reference to the certificate from which to retrieve the public key.
 213     @param key On return, a reference to the public key for the specified certificate. Your code must release this reference by calling the CFRelease function.
 214     @result A result code. See "Security Error Codes" (SecBase.h).
 215 */
 216 OSStatus SecCertificateCopyPublicKey(SecCertificateRef certificate, SecKeyRef *key)
 217         __OSX_AVAILABLE_STARTING(__MAC_10_3, __IPHONE_NA);
 218
 219 /*!
 220     @function SecCertificateCopyCommonName
 221     @abstract Retrieves the common name of the subject of a given certificate.
 222     @param certificate A reference to the certificate from which to retrieve the common name.
 223     @param commonName On return, a reference to the common name. Your code must release this reference by calling the CFRelease function.
 224     @result A result code. See "Security Error Codes" (SecBase.h).
 225     @discussion All the data in this string comes from the certificate itself, and thus it's in whatever language the certificate itself is in.
 226         Note that the certificate's common name field may not be present, or may be inadequate to describe the certificate; for display purposes,
 227         you should consider using SecCertificateCopySubjectSummary instead of this function.
 228 */
 229 OSStatus SecCertificateCopyCommonName(SecCertificateRef certificate, CFStringRef *commonName)
 230         __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA);
 231
 232 /*!
 233         @function SecCertificateCopySubjectSummary
 234         @abstract Returns a simple string which hopefully represents a human understandable summary.
 235     @param certificate  A reference to the certificate from which to derive the subject summary string.
 236         @result On return, a reference to the subject summary string. Your code must release this reference by calling the CFRelease function.
 237     @discussion All the data in this string comes from the certificate itself, and thus it's in whatever language the certificate itself is in.
 238 */
 239 CFStringRef SecCertificateCopySubjectSummary(SecCertificateRef certificate)
 240         __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_2_0);
 241
 242 /*!
 243     @function SecCertificateCopyEmailAddresses
 244     @abstract Returns an array of zero or more email addresses for the subject of a given certificate.
 245     @param certificate A reference to the certificate from which to retrieve the email addresses.
 246     @param emailAddresses On return, an array of zero or more CFStringRef elements corresponding to each email address found.
 247         Your code must release this array reference by calling the CFRelease function.
 248     @result A result code. See "Security Error Codes" (SecBase.h).
 249 */
 250 OSStatus SecCertificateCopyEmailAddresses(SecCertificateRef certificate, CFArrayRef *emailAddresses)
 251         __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA);
 252
 253 /*!
 254     @function SecCertificateCopyPreference
 255     @abstract Returns the preferred certificate for the specified name and key usage. If a preferred certificate does not exist for the specified name and key usage, NULL is returned.
 256     @param name A string containing an email address (RFC822) or other name for which a preferred certificate is requested.
 257     @param keyUsage A CSSM_KEYUSE key usage value, as defined in cssmtype.h. Pass 0 to ignore this parameter.
 258     @param certificate On return, a reference to the preferred certificate, or NULL if none was found. You are responsible for releasing this reference by calling the CFRelease function.
 259     @result A result code. See "Security Error Codes" (SecBase.h).
 260     @discussion This function will typically be used to obtain the preferred encryption certificate for an email recipient.
 261         This API is deprecated in 10.7. Please use the SecCertificateCopyPreferred API instead.
 262 */
 263 OSStatus SecCertificateCopyPreference(CFStringRef name, uint32 keyUsage, SecCertificateRef *certificate)
 264         DEPRECATED_IN_MAC_OS_X_VERSION_10_7_AND_LATER;
 265
 266 /*!
 267     @function SecCertificateCopyPreferred
 268     @abstract Returns the preferred certificate for the specified name and key usage. If a preferred certificate does not exist for the specified name and key usage, NULL is returned.
 269     @param name A string containing an email address (RFC822) or other name for which a preferred certificate is requested.
 270     @param keyUsage A CFArrayRef value, containing items defined in SecItem.h  Pass NULL to ignore this parameter. (kSecAttrCanEncrypt, kSecAttrCanDecrypt, kSecAttrCanDerive, kSecAttrCanSign, kSecAttrCanVerify, kSecAttrCanWrap, kSecAttrCanUnwrap)
 271     @result On return, a reference to the preferred certificate, or NULL if none was found. You are responsible for releasing this reference by calling the CFRelease function.
 272     @discussion This function will typically be used to obtain the preferred encryption certificate for an email recipient. If a preferred certificate has not been set
 273         for the supplied name, the returned reference will be NULL. Your code should then perform a search for possible certificates, using the SecItemCopyMatching API.
 274 */
 275 SecCertificateRef SecCertificateCopyPreferred(CFStringRef name, CFArrayRef keyUsage)
 276         __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 277
 278 /*!
 279     @function SecCertificateSetPreference
 280     @abstract Sets the preferred certificate for a specified name, key usage, and date.
 281     @param certificate A reference to the certificate which will be preferred.
 282     @param name A string containing an email address (RFC822) or other name for which a preferred certificate will be associated.
 283     @param keyUsage A CSSM_KEYUSE key usage value, as defined in cssmtype.h. Pass 0 to avoid specifying a particular key usage.
 284     @param date (optional) A date reference. If supplied, the preferred certificate will be changed only if this date is later than the currently saved setting. Pass NULL if this preference should not be restricted by date.
 285     @result A result code. See "Security Error Codes" (SecBase.h).
 286     @discussion This function will typically be used to set the preferred encryption certificate for an email recipient, either manually (when encrypting email to a recipient) or automatically upon receipt of encrypted email.
 287         This API is deprecated in 10.7. Plese use the SecCertificateSetPreferred API instead.
 288 */
 289 OSStatus SecCertificateSetPreference(SecCertificateRef certificate, CFStringRef name, uint32 keyUsage, CFDateRef date)
 290         __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_NA);
 291
 292 /*!
 293     @function SecCertificateSetPreferred
 294     @abstract Sets the preferred certificate for a specified name and optional key usage.
 295     @param certificate A reference to the preferred certificate. If NULL is passed, any existing preference for the specified name is cleared instead.
 296     @param name A string containing an email address (RFC822) or other name for which a preferred certificate will be associated.
 297     @param keyUsage A CFArrayRef value, containing items defined in SecItem.h  Pass NULL to ignore this parameter. (kSecAttrCanEncrypt, kSecAttrCanDecrypt, kSecAttrCanDerive, kSecAttrCanSign, kSecAttrCanVerify, kSecAttrCanWrap, kSecAttrCanUnwrap)
 298     @result A result code. See "Security Error Codes" (SecBase.h).
 299     @discussion This function will typically be used to set the preferred encryption certificate for an email recipient, either manually (when encrypting email to a recipient)
 300         or automatically upon receipt of encrypted email.
 301 */
 302 OSStatus SecCertificateSetPreferred(SecCertificateRef certificate, CFStringRef name, CFArrayRef keyUsage)
 303         __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 304
 305 /*!
 306  @enum kSecPropertyKey
 307  @abstract Constants used to access dictionary entries returned by SecCertificateCopyValues
 308  @constant kSecPropertyKeyType The type of the entry
 309  @constant kSecPropertyKeyLabel The label of the entry
 310  @constant kSecPropertyKeyLocalizedLabel The localized label of the entry
 311  @constant kSecPropertyKeyValue The value of the entry
 312  */
 313
 314 extern CFStringRef kSecPropertyKeyType __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 315 extern CFStringRef kSecPropertyKeyLabel __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 316 extern CFStringRef kSecPropertyKeyLocalizedLabel __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 317 extern CFStringRef kSecPropertyKeyValue __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 318
 319 /*!
 320         @enum kSecPropertyType
 321         @abstract Public Constants for property list values returned by SecCertificateCopyValues
 322         @discussion Note that kSecPropertyTypeTitle and kSecPropertyTypeError are defined in SecTrust.h
 323 */
 324 extern CFStringRef kSecPropertyTypeWarning __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 325 extern CFStringRef kSecPropertyTypeSuccess __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 326 extern CFStringRef kSecPropertyTypeSection __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 327 extern CFStringRef kSecPropertyTypeData __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 328 extern CFStringRef kSecPropertyTypeString __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 329 extern CFStringRef kSecPropertyTypeURL __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 330 extern CFStringRef kSecPropertyTypeDate __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 331
 332 /*!
 333     @function SecCertificateCopyValues
 334         @abstract               Creates a dictionary that represents a certificate's contents.
 335         @param certificate The certificate from which to get values
 336         @param keys             An array of string OID values, or NULL. If present, this is
 337                                         the subset of values from the certificate to return. If NULL,
 338                                         all values will be returned. Only OIDs that are top level keys
 339                                         in the returned dictionary can be specified. Unknown OIDs are
 340                                         ignored.
 341         @param error    An optional pointer to a CFErrorRef. This value is
 342                                         set if an error occurred.  If not NULL the caller is
 343                                         responsible for releasing the CFErrorRef.
 344         @discussion             The keys array will contain all of the keys used in the
 345                                         returned dictionary. The top level keys in the returned
 346                                         dictionary are OIDs, many of which are found in SecCertificateOIDs.h.
 347                                         Each entry that is returned is itself a dictionary with four
 348                                         entries, whose keys are kSecPropertyKeyType, kSecPropertyKeyLabel,
 349                                         kSecPropertyKeyLocalizedLabel, kSecPropertyKeyValue. The label
 350                                         entries may contain a descriptive (localized) string, or an
 351                                         OID string. The kSecPropertyKeyType describes the type in the
 352                                         value entry. The value entry may be any CFType, although it
 353                                         is usually a CFStringRef, CFArrayRef or a CFDictionaryRef.
 354 */
 355 CFDictionaryRef SecCertificateCopyValues(SecCertificateRef certificate, CFArrayRef keys, CFErrorRef *error)
 356         __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 357
 358 /*!
 359     @enum Transform  Key Value Constants
 360     @discussion                 Predefined values for the kSecTransformAttrCertificateUsage attribute.
 361
 362
 363         kSecCertificateUsageSigning
 364         kSecCertificateUsageSigningAndEncrypting
 365         kSecCertificateUsageDeriveAndSign
 366
 367 */
 368
 369 extern const CFStringRef kSecCertificateUsageSigning __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 370 extern const CFStringRef kSecCertificateUsageSigningAndEncrypting __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 371 extern const CFStringRef kSecCertificateUsageDeriveAndSign __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 372
 373 /*!
 374     @function                   SecCertificateCopyLongDescription
 375         @abstract                       Return the long description of a certificate
 376         @param alloc            The CFAllocator which should be used to allocate
 377                                                 memory for the dictionary and its storage for values. This
 378                                                 parameter may be NULL in which case the current default
 379                                                 CFAllocator is used. If this reference is not a valid
 380                                                 CFAllocator, the behavior is undefined.
 381         @param certificate      The certificate from which to retrieve the long description
 382         @param  error           An optional pointer to a CFErrorRef. This value is
 383                                                 set if an error occurred.  If not NULL the caller is
 384                                                 responsible for releasing the CFErrorRef.
 385         @result                         A CFStringRef of the long description or NULL. If NULL and the error
 386                                                 parameter is supplied the error will be returned in the error parameter
 387         @discussion                     Note that the format of this string may change in the future
 388 */
 389
 390 CFStringRef SecCertificateCopyLongDescription(CFAllocatorRef alloc, SecCertificateRef certificate, CFErrorRef *error)
 391                                         __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 392
 393 /*!
 394     @function                   SecCertificateCopyShortDescription
 395         @abstract                       Return the short description of a certificate
 396         @param alloc            The CFAllocator which should be used to allocate
 397                                                 memory for the dictionary and its storage for values. This
 398                                                 parameter may be NULL in which case the current default
 399                                                 CFAllocator is used. If this reference is not a valid
 400                                                 CFAllocator, the behavior is undefined.
 401         @param certificate      The certificate from which to retrieve the short description
 402         @param  error           An optional pointer to a CFErrorRef. This value is
 403                                                 set if an error occurred.  If not NULL the caller is
 404                                                 responsible for releasing the CFErrorRef.
 405         @result                         A CFStringRef of the short description or NULL. If NULL and the error
 406                                                 parameter is supplied the error will be returned in the error parameter
 407  @discussion                    Note that the format of this string may change in the future
 408 */
 409
 410 CFStringRef SecCertificateCopyShortDescription(CFAllocatorRef alloc, SecCertificateRef certificate, CFErrorRef *error)
 411                 __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 412
 413 /*!
 414     @function                   SecCertificateCopySerialNumber
 415         @abstract                       Return the certificate's serial number.
 416         @param certificate      The certificate from which to get values
 417         @param  error           An optional pointer to a CFErrorRef. This value is
 418                                                 set if an error occurred.  If not NULL the caller is
 419                                                 responsible for releasing the CFErrorRef.
 420         @discussion                     Return the content of a DER-encoded integer (without the
 421                                                 tag and length fields) for this certificate's serial
 422                                                 number.   The caller must CFRelease the value returned.
 423 */
 424
 425 CFDataRef SecCertificateCopySerialNumber(SecCertificateRef certificate, CFErrorRef *error)
 426                 __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 427
 428 /*!
 429     @function                   SecCertificateCopyNormalizedIssuerContent
 430         @abstract                       Return the certificate's normalized issuer
 431         @param certificate      The certificate from which to get values
 432         @param error            An optional pointer to a CFErrorRef. This value is
 433                                                 set if an error occurred.  If not NULL the caller is
 434                                                 responsible for releasing the CFErrorRef.
 435         @discussion                     The issuer is a sequence in the format used by
 436                                                 SecItemCopyMatching.  The content returned is a DER-encoded
 437                                                 X.509 distinguished name. For a display version of the issuer,
 438                                                 call SecCertificateCopyValues. The caller must CFRelease
 439                                                 the value returned.
 440 */
 441
 442 CFDataRef SecCertificateCopyNormalizedIssuerContent(SecCertificateRef certificate, CFErrorRef *error)
 443                 __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 444
 445 /*!
 446     @function                   SecCertificateCopyNormalizedSubjectContent
 447         @abstract                       Return the certificate's normalized subject
 448         @param certificate      The certificate from which to get values
 449         @param error            An optional pointer to a CFErrorRef. This value is
 450                                                 set if an error occurred.  If not NULL the caller is
 451                                                 responsible for releasing the CFErrorRef.
 452         @discussion                     The subject is a sequence in the format used by
 453                                                 SecItemCopyMatching. The content returned is a DER-encoded
 454                                                 X.509 distinguished name. For a display version of the subject,
 455                                                 call SecCertificateCopyValues. The caller must CFRelease
 456                                                 the value returned.
 457 */
 458
 459 CFDataRef SecCertificateCopyNormalizedSubjectContent(SecCertificateRef certificate, CFErrorRef *error)
 460                 __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
 461
 462 #if defined(__cplusplus)
 463 }
 464 #endif
 465
 466 #endif /* !_SECURITY_SECCERTIFICATE_H_ */