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Documentation fixes

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Move MBEDTLS_ECP_MAX_BYTES to a proper place,
adjust comments and descriptions, move includes
to the top of the file
This commit is contained in:
Unknown 2018-02-07 08:02:31 -05:00
parent d76af45ed3
commit 6f21aed6df
3 changed files with 20 additions and 14 deletions
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15
include/mbedtls/ecdsa.h
View file

@ -40,6 +40,9 @@
* (assuming ECP_MAX_BYTES is less than 126 for r and s,
* and less than 124 (total len <= 255) for the sequence)
*/
#if MBEDTLS_ECP_MAX_BYTES > 124
#error "MBEDTLS_ECP_MAX_BYTES bigger than expected, please fix MBEDTLS_ECDSA_MAX_LEN"
#endif
/**
* \brief Maximum ECDSA signature size for a given curve bit size
@ -52,10 +55,6 @@
* this is a problem, call the function
* mbedtls_ecdsa_max_sig_len instead.
*/
#if MBEDTLS_ECP_MAX_BYTES > 124
#error "MBEDTLS_ECP_MAX_BYTES bigger than expected, please fix MBEDTLS_ECDSA_MAX_LEN"
#endif
#define MBEDTLS_ECDSA_MAX_SIG_LEN( bits ) \
( /*T,L of SEQUENCE*/ ( ( bits ) >= 61 * 8 ? 3 : 2 ) + \
/*T,L of r,s*/ 2 * ( ( ( bits ) >= 127 * 8 ? 3 : 2 ) + \
@ -237,8 +236,7 @@ int mbedtls_ecdsa_write_signature_det( mbedtls_ecdsa_context *ctx,
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
/**
* \brief Convert a signature from numbers to ASN.1 INTEGER's,
* then both packed together as parts of an ASN.1 SEQUENCE
* \brief Convert a signature from numbers to ASN.1
*
* \param r First number of the signature
* \param s Second number of the signature
@ -250,6 +248,11 @@ int mbedtls_ecdsa_write_signature_det( mbedtls_ecdsa_context *ctx,
* `MBEDTLS_ECDSA_MAX_SIG_LEN(grp->pbits)` bytes long if
* the signature was produced from curve \c grp,
* otherwise this function will return an error.
* The output ASN.1 SEQUENCE format is as follows:
* Ecdsa-Sig-Value ::= SEQUENCE {
* r INTEGER,
* s INTEGER
* }
*
* \return 0 if successful,
* or a MBEDTLS_ERR_MPI_XXX or MBEDTLS_ERR_ASN1_XXX error code

12
include/mbedtls/pk.h
View file

@ -80,8 +80,11 @@ extern "C" {
/**@{*/
/**
* \brief Asymmetric operation context types
*/
* \brief Asymmetric operation context types
*
* \note An opaque key may be an RSA or ECC key or a key of an
* unrecognized type. Call \c mbedtls_pk_can_do() to check
* whether a key is of a recognized type. */
typedef enum {
MBEDTLS_PK_NONE=0, /**< Unused context object */
MBEDTLS_PK_RSA, /**< RSA key pair (normal software implementation) with PKCS#1 v1.5 or PSS context */
@ -90,10 +93,7 @@ typedef enum {
MBEDTLS_PK_ECDSA, /**< ECC key pair with ECDSA context */
MBEDTLS_PK_RSA_ALT, /**< RSA (alternative implementation) */
MBEDTLS_PK_RSASSA_PSS, /**< RSA key pair; same context as MBEDTLS_PK_RSA, but used to represent keys with the algorithm identifier id-RSASSA-PSS */
/** Opaque key pair (cryptographic material held in an external module).
* This may be an RSA or ECC key or a key of an unrecognized type. Call
* \c mbedtls_pk_can_do() to check whether a key is of a recognized type. */
MBEDTLS_PK_OPAQUE,
MBEDTLS_PK_OPAQUE, /**< Opaque key pair (cryptographic material held in an external module).*/
} mbedtls_pk_type_t;
/**

7
library/ecp.c
View file

@ -51,6 +51,11 @@
#include "mbedtls/ecp.h"
#include "mbedtls/threading.h"
#if defined(MBEDTLS_ASN1_WRITE_C) && defined(MBEDTLS_OID_C)
#include "mbedtls/asn1write.h"
#include "mbedtls/oid.h"
#endif
#include <string.h>
#if !defined(MBEDTLS_ECP_ALT)
@ -2062,8 +2067,6 @@ cleanup:
}
#if defined(MBEDTLS_ASN1_WRITE_C) && defined(MBEDTLS_OID_C)
#include "mbedtls/asn1write.h"
#include "mbedtls/oid.h"
int mbedtls_ecp_ansi_write_group( const mbedtls_ecp_group *grp,
unsigned char *p,
size_t size, size_t *olen )