Security/libsecurity_smime/lib/SecCmsSignerInfo.h

   1 /*
   2  *  Copyright (c) 2004,2011-2012,2014 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 SecCmsSignerInfo.h
  26     @Copyright (c) 2004,2011-2012,2014 Apple Inc. All Rights Reserved.
  27
  28     @availability 10.4 and later
  29     @abstract Interfaces of the CMS implementation.
  30     @discussion The functions here implement functions for encoding
  31                 and decoding Cryptographic Message Syntax (CMS) objects
  32                 as described in rfc3369.
  33  */
  34
  35 #ifndef _SECURITY_SECCMSSIGNERINFO_H_
  36 #define _SECURITY_SECCMSSIGNERINFO_H_  1
  37
  38 #include <Security/SecCmsBase.h>
  39
  40 #include <Security/SecTrust.h>
  41
  42
  43 #if defined(__cplusplus)
  44 extern "C" {
  45 #endif
  46
  47 /*!
  48     @function
  49  */
  50 extern SecCmsSignerInfoRef
  51 SecCmsSignerInfoCreate(SecCmsMessageRef cmsg, SecIdentityRef identity, SECOidTag digestalgtag);
  52
  53 /*!
  54     @function
  55  */
  56 extern SecCmsSignerInfoRef
  57 SecCmsSignerInfoCreateWithSubjKeyID(SecCmsMessageRef cmsg, CSSM_DATA_PTR subjKeyID, SecPublicKeyRef pubKey, SecPrivateKeyRef signingKey, SECOidTag digestalgtag);
  58
  59 /*!
  60     @function
  61     @abstract Destroy a SignerInfo data structure.
  62  */
  63 extern void
  64 SecCmsSignerInfoDestroy(SecCmsSignerInfoRef si);
  65
  66 /*!
  67     @function
  68  */
  69 extern SecCmsVerificationStatus
  70 SecCmsSignerInfoGetVerificationStatus(SecCmsSignerInfoRef signerinfo);
  71
  72 /*!
  73     @function
  74  */
  75 extern OSStatus
  76 SecCmsSignerInfoVerifyUnAuthAttrs(SecCmsSignerInfoRef signerinfo);
  77
  78 /*!
  79     @function
  80  */
  81 extern OSStatus
  82 SecCmsSignerInfoVerifyUnAuthAttrsWithPolicy(SecCmsSignerInfoRef signerinfo,CFTypeRef timeStampPolicy);
  83
  84 /*!
  85     @function
  86  */
  87 extern CSSM_DATA *
  88 SecCmsSignerInfoGetEncDigest(SecCmsSignerInfoRef signerinfo);
  89
  90 /*!
  91     @function
  92  */
  93 extern SECOidData *
  94 SecCmsSignerInfoGetDigestAlg(SecCmsSignerInfoRef signerinfo);
  95
  96 /*!
  97     @function
  98  */
  99 extern SECOidTag
 100 SecCmsSignerInfoGetDigestAlgTag(SecCmsSignerInfoRef signerinfo);
 101
 102 /*!
 103     @function
 104  */
 105 extern CFArrayRef
 106 SecCmsSignerInfoGetCertList(SecCmsSignerInfoRef signerinfo);
 107
 108 /*!
 109     @function
 110  */
 111 extern CFArrayRef
 112 SecCmsSignerInfoGetTimestampCertList(SecCmsSignerInfoRef signerinfo);
 113
 114 /*!
 115     @function
 116     @abstract Return the signing time, in UTCTime format, of a CMS signerInfo.
 117     @param sinfo SignerInfo data for this signer.
 118     @discussion Returns a pointer to XXXX (what?)
 119     @result A return value of NULL is an error.
 120  */
 121 extern OSStatus
 122 SecCmsSignerInfoGetSigningTime(SecCmsSignerInfoRef sinfo, CFAbsoluteTime *stime);
 123
 124 /*!
 125     @function
 126     @abstract Return the timestamp time, in UTCTime format, of a CMS signerInfo.
 127     @param sinfo SignerInfo data for this signer.
 128     @discussion Returns a pointer to XXXX (what?)
 129     @result A return value of NULL is an error.
 130  */
 131 OSStatus
 132 SecCmsSignerInfoGetTimestampTime(SecCmsSignerInfoRef sinfo, CFAbsoluteTime *stime);
 133
 134 /*!
 135     @function
 136     @abstract Return the timestamp time, in UTCTime format, of a CMS signerInfo.
 137     @param sinfo SignerInfo data for this signer, timeStampPolicy the policy to verify the timestamp signer
 138     @discussion Returns a pointer to XXXX (what?)
 139     @result A return value of NULL is an error.
 140  */
 141 OSStatus
 142 SecCmsSignerInfoGetTimestampTimeWithPolicy(SecCmsSignerInfoRef sinfo, CFTypeRef timeStampPolicy, CFAbsoluteTime *stime);
 143
 144 /*!
 145     @function
 146     @abstract Return the signing cert of a CMS signerInfo.
 147     @discussion The certs in the enclosing SignedData must have been imported already.
 148  */
 149 extern SecCertificateRef
 150 SecCmsSignerInfoGetSigningCertificate(SecCmsSignerInfoRef signerinfo, SecKeychainRef keychainOrArray);
 151
 152 /*!
 153     @function
 154     @abstract Return the common name of the signer.
 155     @param sinfo SignerInfo data for this signer.
 156     @discussion Returns a CFStringRef containing the common name of the signer.
 157     @result A return value of NULL is an error.
 158  */
 159 extern CFStringRef
 160 SecCmsSignerInfoGetSignerCommonName(SecCmsSignerInfoRef sinfo);
 161
 162 /*!
 163     @function
 164     @abstract Return the email address of the signer
 165     @param sinfo SignerInfo data for this signer.
 166     @discussion Returns a CFStringRef containing the name of the signer.
 167     @result A return value of NULL is an error.
 168  */
 169 extern CFStringRef
 170 SecCmsSignerInfoGetSignerEmailAddress(SecCmsSignerInfoRef sinfo);
 171
 172 /*!
 173     @function
 174     @abstract Add the signing time to the authenticated (i.e. signed) attributes of "signerinfo".
 175     @discussion This is expected to be included in outgoing signed
 176                 messages for email (S/MIME) but is likely useful in other situations.
 177
 178                 This should only be added once; a second call will do nothing.
 179
 180                 XXX This will probably just shove the current time into "signerinfo"
 181                 but it will not actually get signed until the entire item is
 182                 processed for encoding.  Is this (expected to be small) delay okay?
 183  */
 184 extern OSStatus
 185 SecCmsSignerInfoAddSigningTime(SecCmsSignerInfoRef signerinfo, CFAbsoluteTime t);
 186
 187 /*!
 188     @function
 189     @abstract Add a SMIMECapabilities attribute to the authenticated (i.e. signed) attributes of "signerinfo".
 190     @discussion This is expected to be included in outgoing signed messages for email (S/MIME).
 191  */
 192 extern OSStatus
 193 SecCmsSignerInfoAddSMIMECaps(SecCmsSignerInfoRef signerinfo);
 194
 195 /*!
 196     @function
 197     @abstract Add a SMIMEEncryptionKeyPreferences attribute to the authenticated (i.e. signed) attributes of "signerinfo".
 198     @discussion This is expected to be included in outgoing signed messages for email (S/MIME).
 199  */
 200 OSStatus
 201 SecCmsSignerInfoAddSMIMEEncKeyPrefs(SecCmsSignerInfoRef signerinfo, SecCertificateRef cert, SecKeychainRef keychainOrArray);
 202
 203 /*!
 204     @function
 205     @abstract Add a SMIMEEncryptionKeyPreferences attribute to the authenticated (i.e. signed) attributes of "signerinfo", using the OID prefered by Microsoft.
 206     @discussion This is expected to be included in outgoing signed messages for email (S/MIME), if compatibility with Microsoft mail clients is wanted.
 207  */
 208 OSStatus
 209 SecCmsSignerInfoAddMSSMIMEEncKeyPrefs(SecCmsSignerInfoRef signerinfo, SecCertificateRef cert, SecKeychainRef keychainOrArray);
 210
 211 /*!
 212     @function
 213     @abstract Create a timestamp unsigned attribute with a TimeStampToken.
 214  */
 215 OSStatus
 216 SecCmsSignerInfoAddTimeStamp(SecCmsSignerInfoRef signerinfo, CSSM_DATA *tstoken);
 217
 218 /*!
 219     @function
 220     @abstract Countersign a signerinfo.
 221  */
 222 extern OSStatus
 223 SecCmsSignerInfoAddCounterSignature(SecCmsSignerInfoRef signerinfo,
 224                                     SECOidTag digestalg, SecIdentityRef identity);
 225
 226 /*!
 227     @function
 228     @abstract The following needs to be done in the S/MIME layer code after signature of a signerinfo has been verified.
 229     @param signerinfo The SecCmsSignerInfo object for which we verified the signature.
 230     @result The preferred encryption certificate of the user who signed this message will be added to the users default Keychain and it will be marked as the preferred certificate to use when sending that person messages from now on.
 231  */
 232 extern OSStatus
 233 SecCmsSignerInfoSaveSMIMEProfile(SecCmsSignerInfoRef signerinfo);
 234
 235 /*!
 236     @function
 237     @abstract Set cert chain inclusion mode for this signer.
 238  */
 239 extern OSStatus
 240 SecCmsSignerInfoIncludeCerts(SecCmsSignerInfoRef signerinfo, SecCmsCertChainMode cm, SECCertUsage usage);
 241
 242 /*! @functiongroup CMS misc utility functions */
 243 /*!
 244     @function
 245     Convert a SecCmsVerificationStatus to a human readable string.
 246  */
 247 extern const char *
 248 SecCmsUtilVerificationStatusToString(SecCmsVerificationStatus vs);
 249
 250 /*
 251  * Preference domain and key for the Microsoft ECDSA compatibility flag.
 252  * Default if not present is TRUE, meaning we generate ECDSA-signed messages
 253  * which are compatible with Microsoft Entourage. FALSE means we adhere to
 254  * the spec (RFC 3278 section 2.1.1).
 255  */
 256 #define kMSCompatibilityDomain  "com.apple.security.smime"
 257 #define kMSCompatibilityMode    CFSTR("MSCompatibilityMode")
 258
 259 #if defined(__cplusplus)
 260 }
 261 #endif
 262
 263 #endif /* _SECURITY_SECCMSSIGNERINFO_H_ */