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- Added const-correctness to main codebase

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This commit is contained in:
Paul Bakker 2010-03-16 21:09:09 +00:00
parent 9120018f3d
commit ff60ee6c2a
49 changed files with 1221 additions and 416 deletions
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60
include/polarssl/bignum.h
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@ -108,7 +108,7 @@ int mpi_grow( mpi *X, int nblimbs );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_copy( mpi *X, mpi *Y );
int mpi_copy( mpi *X, const mpi *Y );
/**
* \brief Swap the contents of X and Y
@ -134,21 +134,21 @@ int mpi_lset( mpi *X, int z );
*
* \param X MPI to use
*/
int mpi_lsb( mpi *X );
int mpi_lsb( const mpi *X );
/**
* \brief Return the number of most significant bits
*
* \param X MPI to use
*/
int mpi_msb( mpi *X );
int mpi_msb( const mpi *X );
/**
* \brief Return the total size in bytes
*
* \param X MPI to use
*/
int mpi_size( mpi *X );
int mpi_size( const mpi *X );
/**
* \brief Import from an ASCII string
@ -159,7 +159,7 @@ int mpi_size( mpi *X );
*
* \return 0 if successful, or an POLARSSL_ERR_MPI_XXX error code
*/
int mpi_read_string( mpi *X, int radix, char *s );
int mpi_read_string( mpi *X, int radix, const char *s );
/**
* \brief Export into an ASCII string
@ -169,12 +169,14 @@ int mpi_read_string( mpi *X, int radix, char *s );
* \param s String buffer
* \param slen String buffer size
*
* \return 0 if successful, or an POLARSSL_ERR_MPI_XXX error code
* \return 0 if successful, or an POLARSSL_ERR_MPI_XXX error code.
* *slen is always updated to reflect the amount
* of data that has (or would have) been written.
*
* \note Call this function with *slen = 0 to obtain the
* minimum required buffer size in *slen.
*/
int mpi_write_string( mpi *X, int radix, char *s, int *slen );
int mpi_write_string( const mpi *X, int radix, char *s, int *slen );
/**
* \brief Read X from an opened file
@ -199,7 +201,7 @@ int mpi_read_file( mpi *X, int radix, FILE *fin );
*
* \note Set fout == NULL to print X on the console.
*/
int mpi_write_file( char *p, mpi *X, int radix, FILE *fout );
int mpi_write_file( const char *p, const mpi *X, int radix, FILE *fout );
/**
* \brief Import X from unsigned binary data, big endian
@ -211,7 +213,7 @@ int mpi_write_file( char *p, mpi *X, int radix, FILE *fout );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_read_binary( mpi *X, unsigned char *buf, int buflen );
int mpi_read_binary( mpi *X, const unsigned char *buf, int buflen );
/**
* \brief Export X into unsigned binary data, big endian
@ -223,7 +225,7 @@ int mpi_read_binary( mpi *X, unsigned char *buf, int buflen );
* \return 0 if successful,
* POLARSSL_ERR_MPI_BUFFER_TOO_SMALL if buf isn't large enough
*/
int mpi_write_binary( mpi *X, unsigned char *buf, int buflen );
int mpi_write_binary( const mpi *X, unsigned char *buf, int buflen );
/**
* \brief Left-shift: X <<= count
@ -257,7 +259,7 @@ int mpi_shift_r( mpi *X, int count );
* -1 if |X| is lesser than |Y| or
* 0 if |X| is equal to |Y|
*/
int mpi_cmp_abs( mpi *X, mpi *Y );
int mpi_cmp_abs( const mpi *X, const mpi *Y );
/**
* \brief Compare signed values
@ -269,7 +271,7 @@ int mpi_cmp_abs( mpi *X, mpi *Y );
* -1 if X is lesser than Y or
* 0 if X is equal to Y
*/
int mpi_cmp_mpi( mpi *X, mpi *Y );
int mpi_cmp_mpi( const mpi *X, const mpi *Y );
/**
* \brief Compare signed values
@ -281,7 +283,7 @@ int mpi_cmp_mpi( mpi *X, mpi *Y );
* -1 if X is lesser than z or
* 0 if X is equal to z
*/
int mpi_cmp_int( mpi *X, int z );
int mpi_cmp_int( const mpi *X, int z );
/**
* \brief Unsigned addition: X = |A| + |B|
@ -293,7 +295,7 @@ int mpi_cmp_int( mpi *X, int z );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_add_abs( mpi *X, mpi *A, mpi *B );
int mpi_add_abs( mpi *X, const mpi *A, const mpi *B );
/**
* \brief Unsigned substraction: X = |A| - |B|
@ -305,7 +307,7 @@ int mpi_add_abs( mpi *X, mpi *A, mpi *B );
* \return 0 if successful,
* POLARSSL_ERR_MPI_NEGATIVE_VALUE if B is greater than A
*/
int mpi_sub_abs( mpi *X, mpi *A, mpi *B );
int mpi_sub_abs( mpi *X, const mpi *A, const mpi *B );
/**
* \brief Signed addition: X = A + B
@ -317,7 +319,7 @@ int mpi_sub_abs( mpi *X, mpi *A, mpi *B );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_add_mpi( mpi *X, mpi *A, mpi *B );
int mpi_add_mpi( mpi *X, const mpi *A, const mpi *B );
/**
* \brief Signed substraction: X = A - B
@ -329,7 +331,7 @@ int mpi_add_mpi( mpi *X, mpi *A, mpi *B );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_sub_mpi( mpi *X, mpi *A, mpi *B );
int mpi_sub_mpi( mpi *X, const mpi *A, const mpi *B );
/**
* \brief Signed addition: X = A + b
@ -341,7 +343,7 @@ int mpi_sub_mpi( mpi *X, mpi *A, mpi *B );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_add_int( mpi *X, mpi *A, int b );
int mpi_add_int( mpi *X, const mpi *A, int b );
/**
* \brief Signed substraction: X = A - b
@ -353,7 +355,7 @@ int mpi_add_int( mpi *X, mpi *A, int b );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_sub_int( mpi *X, mpi *A, int b );
int mpi_sub_int( mpi *X, const mpi *A, int b );
/**
* \brief Baseline multiplication: X = A * B
@ -365,7 +367,7 @@ int mpi_sub_int( mpi *X, mpi *A, int b );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_mul_mpi( mpi *X, mpi *A, mpi *B );
int mpi_mul_mpi( mpi *X, const mpi *A, const mpi *B );
/**
* \brief Baseline multiplication: X = A * b
@ -379,7 +381,7 @@ int mpi_mul_mpi( mpi *X, mpi *A, mpi *B );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_mul_int( mpi *X, mpi *A, t_int b );
int mpi_mul_int( mpi *X, const mpi *A, t_int b );
/**
* \brief Division by mpi: A = Q * B + R
@ -395,7 +397,7 @@ int mpi_mul_int( mpi *X, mpi *A, t_int b );
*
* \note Either Q or R can be NULL.
*/
int mpi_div_mpi( mpi *Q, mpi *R, mpi *A, mpi *B );
int mpi_div_mpi( mpi *Q, mpi *R, const mpi *A, const mpi *B );
/**
* \brief Division by int: A = Q * b + R
@ -411,7 +413,7 @@ int mpi_div_mpi( mpi *Q, mpi *R, mpi *A, mpi *B );
*
* \note Either Q or R can be NULL.
*/
int mpi_div_int( mpi *Q, mpi *R, mpi *A, int b );
int mpi_div_int( mpi *Q, mpi *R, const mpi *A, int b );
/**
* \brief Modulo: R = A mod B
@ -425,12 +427,12 @@ int mpi_div_int( mpi *Q, mpi *R, mpi *A, int b );
* POLARSSL_ERR_MPI_DIVISION_BY_ZERO if B == 0,
* POLARSSL_ERR_MPI_NEGATIVE_VALUE if B < 0
*/
int mpi_mod_mpi( mpi *R, mpi *A, mpi *B );
int mpi_mod_mpi( mpi *R, const mpi *A, const mpi *B );
/**
* \brief Modulo: r = A mod b
*
* \param a Destination t_int
* \param r Destination t_int
* \param A Left-hand MPI
* \param b Integer to divide by
*
@ -439,7 +441,7 @@ int mpi_mod_mpi( mpi *R, mpi *A, mpi *B );
* POLARSSL_ERR_MPI_DIVISION_BY_ZERO if b == 0,
* POLARSSL_ERR_MPI_NEGATIVE_VALUE if b < 0
*/
int mpi_mod_int( t_int *r, mpi *A, int b );
int mpi_mod_int( t_int *r, const mpi *A, int b );
/**
* \brief Sliding-window exponentiation: X = A^E mod N
@ -458,7 +460,7 @@ int mpi_mod_int( t_int *r, mpi *A, int b );
* multiple calls, which speeds up things a bit. It can
* be set to NULL if the extra performance is unneeded.
*/
int mpi_exp_mod( mpi *X, mpi *A, mpi *E, mpi *N, mpi *_RR );
int mpi_exp_mod( mpi *X, const mpi *A, const mpi *E, const mpi *N, mpi *_RR );
/**
* \brief Greatest common divisor: G = gcd(A, B)
@ -470,7 +472,7 @@ int mpi_exp_mod( mpi *X, mpi *A, mpi *E, mpi *N, mpi *_RR );
* \return 0 if successful,
* 1 if memory allocation failed
*/
int mpi_gcd( mpi *G, mpi *A, mpi *B );
int mpi_gcd( mpi *G, const mpi *A, const mpi *B );
/**
* \brief Modular inverse: X = A^-1 mod N
@ -484,7 +486,7 @@ int mpi_gcd( mpi *G, mpi *A, mpi *B );
* POLARSSL_ERR_MPI_BAD_INPUT_DATA if N is negative or nil
POLARSSL_ERR_MPI_NOT_ACCEPTABLE if A has no inverse mod N
*/
int mpi_inv_mod( mpi *X, mpi *A, mpi *N );
int mpi_inv_mod( mpi *X, const mpi *A, const mpi *N );
/**
* \brief Miller-Rabin primality test