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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /security/nss/lib/freebl/mpi/mplogic.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'security/nss/lib/freebl/mpi/mplogic.h')
-rw-r--r-- | security/nss/lib/freebl/mpi/mplogic.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/security/nss/lib/freebl/mpi/mplogic.h b/security/nss/lib/freebl/mpi/mplogic.h new file mode 100644 index 000000000..a4a6b7735 --- /dev/null +++ b/security/nss/lib/freebl/mpi/mplogic.h @@ -0,0 +1,52 @@ +/* + * mplogic.h + * + * Bitwise logical operations on MPI values + * + * 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/. */ + +#ifndef _H_MPLOGIC_ +#define _H_MPLOGIC_ + +#include "mpi.h" + +/* + The logical operations treat an mp_int as if it were a bit vector, + without regard to its sign (an mp_int is represented in a signed + magnitude format). Values are treated as if they had an infinite + string of zeros left of the most-significant bit. + */ + +/* Parity results */ + +#define MP_EVEN MP_YES +#define MP_ODD MP_NO + +/* Bitwise functions */ + +mp_err mpl_not(mp_int *a, mp_int *b); /* one's complement */ +mp_err mpl_and(mp_int *a, mp_int *b, mp_int *c); /* bitwise AND */ +mp_err mpl_or(mp_int *a, mp_int *b, mp_int *c); /* bitwise OR */ +mp_err mpl_xor(mp_int *a, mp_int *b, mp_int *c); /* bitwise XOR */ + +/* Shift functions */ + +mp_err mpl_rsh(const mp_int *a, mp_int *b, mp_digit d); /* right shift */ +mp_err mpl_lsh(const mp_int *a, mp_int *b, mp_digit d); /* left shift */ + +/* Bit count and parity */ + +mp_err mpl_num_set(mp_int *a, int *num); /* count set bits */ +mp_err mpl_num_clear(mp_int *a, int *num); /* count clear bits */ +mp_err mpl_parity(mp_int *a); /* determine parity */ + +/* Get & Set the value of a bit */ + +mp_err mpl_set_bit(mp_int *a, mp_size bitNum, mp_size value); +mp_err mpl_get_bit(const mp_int *a, mp_size bitNum); +mp_err mpl_get_bits(const mp_int *a, mp_size lsbNum, mp_size numBits); +mp_size mpl_significant_bits(const mp_int *a); + +#endif /* end _H_MPLOGIC_ */ |