Add m-esr52 at 52.6.0

1 files changed, 351 insertions, 0 deletions

diff --git a/security/nss/lib/smime/cmslocal.h b/security/nss/lib/smime/cmslocal.h
new file mode 100644
index 000000000..ef7d50028
--- /dev/null
+++ b/security/nss/lib/smime/cmslocal.h
@@ -0,0 +1,351 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Support routines for CMS implementation, none of which are exported.
+ *
+ * Do not export this file!  If something in here is really needed outside
+ * of smime code, first try to add a CMS interface which will do it for
+ * you.  If that has a problem, then just move out what you need, changing
+ * its name as appropriate!
+ */
+
+#ifndef _CMSLOCAL_H_
+#define _CMSLOCAL_H_
+
+#include "cms.h"
+#include "cmsreclist.h"
+#include "secasn1t.h"
+
+extern const SEC_ASN1Template NSSCMSContentInfoTemplate[];
+
+struct NSSCMSContentInfoPrivateStr {
+    NSSCMSCipherContext *ciphcx;
+    NSSCMSDigestContext *digcx;
+    PRBool dontStream;
+};
+
+/************************************************************************/
+SEC_BEGIN_PROTOS
+
+/*
+ * private content Info stuff
+ */
+
+/* initialize the private content info field. If this returns
+ * SECSuccess, the cinfo->private field is safe to dereference.
+ */
+SECStatus NSS_CMSContentInfo_Private_Init(NSSCMSContentInfo *cinfo);
+
+/***********************************************************************
+ * cmscipher.c - en/decryption routines
+ ***********************************************************************/
+
+/*
+ * NSS_CMSCipherContext_StartDecrypt - create a cipher context to do decryption
+ * based on the given bulk * encryption key and algorithm identifier (which may include an iv).
+ */
+extern NSSCMSCipherContext *
+NSS_CMSCipherContext_StartDecrypt(PK11SymKey *key, SECAlgorithmID *algid);
+
+/*
+ * NSS_CMSCipherContext_StartEncrypt - create a cipher object to do encryption,
+ * based on the given bulk encryption key and algorithm tag.  Fill in the algorithm
+ * identifier (which may include an iv) appropriately.
+ */
+extern NSSCMSCipherContext *
+NSS_CMSCipherContext_StartEncrypt(PLArenaPool *poolp, PK11SymKey *key, SECAlgorithmID *algid);
+
+extern void
+NSS_CMSCipherContext_Destroy(NSSCMSCipherContext *cc);
+
+/*
+ * NSS_CMSCipherContext_DecryptLength - find the output length of the next call to decrypt.
+ *
+ * cc - the cipher context
+ * input_len - number of bytes used as input
+ * final - true if this is the final chunk of data
+ *
+ * Result can be used to perform memory allocations.  Note that the amount
+ * is exactly accurate only when not doing a block cipher or when final
+ * is false, otherwise it is an upper bound on the amount because until
+ * we see the data we do not know how many padding bytes there are
+ * (always between 1 and bsize).
+ */
+extern unsigned int
+NSS_CMSCipherContext_DecryptLength(NSSCMSCipherContext *cc, unsigned int input_len, PRBool final);
+
+/*
+ * NSS_CMSCipherContext_EncryptLength - find the output length of the next call to encrypt.
+ *
+ * cc - the cipher context
+ * input_len - number of bytes used as input
+ * final - true if this is the final chunk of data
+ *
+ * Result can be used to perform memory allocations.
+ */
+extern unsigned int
+NSS_CMSCipherContext_EncryptLength(NSSCMSCipherContext *cc, unsigned int input_len, PRBool final);
+
+/*
+ * NSS_CMSCipherContext_Decrypt - do the decryption
+ *
+ * cc - the cipher context
+ * output - buffer for decrypted result bytes
+ * output_len_p - number of bytes in output
+ * max_output_len - upper bound on bytes to put into output
+ * input - pointer to input bytes
+ * input_len - number of input bytes
+ * final - true if this is the final chunk of data
+ *
+ * Decrypts a given length of input buffer (starting at "input" and
+ * containing "input_len" bytes), placing the decrypted bytes in
+ * "output" and storing the output length in "*output_len_p".
+ * "cc" is the return value from NSS_CMSCipher_StartDecrypt.
+ * When "final" is true, this is the last of the data to be decrypted.
+ */
+extern SECStatus
+NSS_CMSCipherContext_Decrypt(NSSCMSCipherContext *cc, unsigned char *output,
+                             unsigned int *output_len_p, unsigned int max_output_len,
+                             const unsigned char *input, unsigned int input_len,
+                             PRBool final);
+
+/*
+ * NSS_CMSCipherContext_Encrypt - do the encryption
+ *
+ * cc - the cipher context
+ * output - buffer for decrypted result bytes
+ * output_len_p - number of bytes in output
+ * max_output_len - upper bound on bytes to put into output
+ * input - pointer to input bytes
+ * input_len - number of input bytes
+ * final - true if this is the final chunk of data
+ *
+ * Encrypts a given length of input buffer (starting at "input" and
+ * containing "input_len" bytes), placing the encrypted bytes in
+ * "output" and storing the output length in "*output_len_p".
+ * "cc" is the return value from NSS_CMSCipher_StartEncrypt.
+ * When "final" is true, this is the last of the data to be encrypted.
+ */
+extern SECStatus
+NSS_CMSCipherContext_Encrypt(NSSCMSCipherContext *cc, unsigned char *output,
+                             unsigned int *output_len_p, unsigned int max_output_len,
+                             const unsigned char *input, unsigned int input_len,
+                             PRBool final);
+
+/************************************************************************
+ * cmspubkey.c - public key operations
+ ************************************************************************/
+
+/*
+ * NSS_CMSUtil_EncryptSymKey_RSA - wrap a symmetric key with RSA
+ *
+ * this function takes a symmetric key and encrypts it using an RSA public key
+ * according to PKCS#1 and RFC2633 (S/MIME)
+ */
+extern SECStatus
+NSS_CMSUtil_EncryptSymKey_RSA(PLArenaPool *poolp, CERTCertificate *cert,
+                              PK11SymKey *key,
+                              SECItem *encKey);
+
+extern SECStatus
+NSS_CMSUtil_EncryptSymKey_RSAPubKey(PLArenaPool *poolp,
+                                    SECKEYPublicKey *publickey,
+                                    PK11SymKey *bulkkey, SECItem *encKey);
+
+/*
+ * NSS_CMSUtil_DecryptSymKey_RSA - unwrap a RSA-wrapped symmetric key
+ *
+ * this function takes an RSA-wrapped symmetric key and unwraps it, returning a symmetric
+ * key handle. Please note that the actual unwrapped key data may not be allowed to leave
+ * a hardware token...
+ */
+extern PK11SymKey *
+NSS_CMSUtil_DecryptSymKey_RSA(SECKEYPrivateKey *privkey, SECItem *encKey, SECOidTag bulkalgtag);
+
+extern SECStatus
+NSS_CMSUtil_EncryptSymKey_ESDH(PLArenaPool *poolp, CERTCertificate *cert, PK11SymKey *key,
+                               SECItem *encKey, SECItem **ukm, SECAlgorithmID *keyEncAlg,
+                               SECItem *originatorPubKey);
+
+extern PK11SymKey *
+NSS_CMSUtil_DecryptSymKey_ESDH(SECKEYPrivateKey *privkey, SECItem *encKey,
+                               SECAlgorithmID *keyEncAlg, SECOidTag bulkalgtag, void *pwfn_arg);
+
+/************************************************************************
+ * cmsreclist.c - recipient list stuff
+ ************************************************************************/
+extern NSSCMSRecipient **nss_cms_recipient_list_create(NSSCMSRecipientInfo **recipientinfos);
+extern void nss_cms_recipient_list_destroy(NSSCMSRecipient **recipient_list);
+extern NSSCMSRecipientEncryptedKey *NSS_CMSRecipientEncryptedKey_Create(PLArenaPool *poolp);
+
+/************************************************************************
+ * cmsarray.c - misc array functions
+ ************************************************************************/
+/*
+ * NSS_CMSArray_Alloc - allocate an array in an arena
+ */
+extern void **
+NSS_CMSArray_Alloc(PLArenaPool *poolp, int n);
+
+/*
+ * NSS_CMSArray_Add - add an element to the end of an array
+ */
+extern SECStatus
+NSS_CMSArray_Add(PLArenaPool *poolp, void ***array, void *obj);
+
+/*
+ * NSS_CMSArray_IsEmpty - check if array is empty
+ */
+extern PRBool
+NSS_CMSArray_IsEmpty(void **array);
+
+/*
+ * NSS_CMSArray_Count - count number of elements in array
+ */
+extern int
+NSS_CMSArray_Count(void **array);
+
+/*
+ * NSS_CMSArray_Sort - sort an array ascending, in place
+ *
+ * If "secondary" is not NULL, the same reordering gets applied to it.
+ * If "tertiary" is not NULL, the same reordering gets applied to it.
+ * "compare" is a function that returns
+ *  < 0 when the first element is less than the second
+ *  = 0 when the first element is equal to the second
+ *  > 0 when the first element is greater than the second
+ */
+extern void
+NSS_CMSArray_Sort(void **primary, int (*compare)(void *, void *), void **secondary, void **tertiary);
+
+/************************************************************************
+ * cmsattr.c - misc attribute functions
+ ************************************************************************/
+/*
+ * NSS_CMSAttribute_Create - create an attribute
+ *
+ * if value is NULL, the attribute won't have a value. It can be added later
+ * with NSS_CMSAttribute_AddValue.
+ */
+extern NSSCMSAttribute *
+NSS_CMSAttribute_Create(PLArenaPool *poolp, SECOidTag oidtag, SECItem *value, PRBool encoded);
+
+/*
+ * NSS_CMSAttribute_AddValue - add another value to an attribute
+ */
+extern SECStatus
+NSS_CMSAttribute_AddValue(PLArenaPool *poolp, NSSCMSAttribute *attr, SECItem *value);
+
+/*
+ * NSS_CMSAttribute_GetType - return the OID tag
+ */
+extern SECOidTag
+NSS_CMSAttribute_GetType(NSSCMSAttribute *attr);
+
+/*
+ * NSS_CMSAttribute_GetValue - return the first attribute value
+ *
+ * We do some sanity checking first:
+ * - Multiple values are *not* expected.
+ * - Empty values are *not* expected.
+ */
+extern SECItem *
+NSS_CMSAttribute_GetValue(NSSCMSAttribute *attr);
+
+/*
+ * NSS_CMSAttribute_CompareValue - compare the attribute's first value against data
+ */
+extern PRBool
+NSS_CMSAttribute_CompareValue(NSSCMSAttribute *attr, SECItem *av);
+
+/*
+ * NSS_CMSAttributeArray_Encode - encode an Attribute array as SET OF Attributes
+ *
+ * If you are wondering why this routine does not reorder the attributes
+ * first, and might be tempted to make it do so, see the comment by the
+ * call to ReorderAttributes in cmsencode.c.  (Or, see who else calls this
+ * and think long and hard about the implications of making it always
+ * do the reordering.)
+ */
+extern SECItem *
+NSS_CMSAttributeArray_Encode(PLArenaPool *poolp, NSSCMSAttribute ***attrs, SECItem *dest);
+
+/*
+ * NSS_CMSAttributeArray_Reorder - sort attribute array by attribute's DER encoding
+ *
+ * make sure that the order of the attributes guarantees valid DER (which must be
+ * in lexigraphically ascending order for a SET OF); if reordering is necessary it
+ * will be done in place (in attrs).
+ */
+extern SECStatus
+NSS_CMSAttributeArray_Reorder(NSSCMSAttribute **attrs);
+
+/*
+ * NSS_CMSAttributeArray_FindAttrByOidTag - look through a set of attributes and
+ * find one that matches the specified object ID.
+ *
+ * If "only" is true, then make sure that there is not more than one attribute
+ * of the same type.  Otherwise, just return the first one found. (XXX Does
+ * anybody really want that first-found behavior?  It was like that when I found it...)
+ */
+extern NSSCMSAttribute *
+NSS_CMSAttributeArray_FindAttrByOidTag(NSSCMSAttribute **attrs, SECOidTag oidtag, PRBool only);
+
+/*
+ * NSS_CMSAttributeArray_AddAttr - add an attribute to an
+ * array of attributes.
+ */
+extern SECStatus
+NSS_CMSAttributeArray_AddAttr(PLArenaPool *poolp, NSSCMSAttribute ***attrs, NSSCMSAttribute *attr);
+
+/*
+ * NSS_CMSAttributeArray_SetAttr - set an attribute's value in a set of attributes
+ */
+extern SECStatus
+NSS_CMSAttributeArray_SetAttr(PLArenaPool *poolp, NSSCMSAttribute ***attrs,
+                              SECOidTag type, SECItem *value, PRBool encoded);
+
+/*
+ * NSS_CMSSignedData_AddTempCertificate - add temporary certificate references.
+ * They may be needed for signature verification on the data, for example.
+ */
+extern SECStatus
+NSS_CMSSignedData_AddTempCertificate(NSSCMSSignedData *sigd, CERTCertificate *cert);
+
+/*
+ * local function to handle compatibility issues
+ * by mapping a signature algorithm back to a digest.
+ */
+SECOidTag NSS_CMSUtil_MapSignAlgs(SECOidTag signAlg);
+
+/************************************************************************/
+
+/*
+ * local functions to handle user defined S/MIME content types
+ */
+
+PRBool NSS_CMSType_IsWrapper(SECOidTag type);
+PRBool NSS_CMSType_IsData(SECOidTag type);
+size_t NSS_CMSType_GetContentSize(SECOidTag type);
+const SEC_ASN1Template *NSS_CMSType_GetTemplate(SECOidTag type);
+
+void NSS_CMSGenericWrapperData_Destroy(SECOidTag type,
+                                       NSSCMSGenericWrapperData *gd);
+SECStatus NSS_CMSGenericWrapperData_Decode_BeforeData(SECOidTag type,
+                                                      NSSCMSGenericWrapperData *gd);
+SECStatus NSS_CMSGenericWrapperData_Decode_AfterData(SECOidTag type,
+                                                     NSSCMSGenericWrapperData *gd);
+SECStatus NSS_CMSGenericWrapperData_Decode_AfterEnd(SECOidTag type,
+                                                    NSSCMSGenericWrapperData *gd);
+SECStatus NSS_CMSGenericWrapperData_Encode_BeforeStart(SECOidTag type,
+                                                       NSSCMSGenericWrapperData *gd);
+SECStatus NSS_CMSGenericWrapperData_Encode_BeforeData(SECOidTag type,
+                                                      NSSCMSGenericWrapperData *gd);
+SECStatus NSS_CMSGenericWrapperData_Encode_AfterData(SECOidTag type,
+                                                     NSSCMSGenericWrapperData *gd);
+
+SEC_END_PROTOS
+
+#endif /* _CMSLOCAL_H_ */