Encode a signed BIGNUM as big‐endian two's‐complement of fixed width.

Synopsis

Declared in <openssl/bn.h>

int
BN_signed_bn2bin(
    BIGNUM const* a,
    unsigned char* to,
    int tolen);

Return Value

tolen on success, or ‐1 if a does not fit in tolen bytes.

Parameters

Name

Description

a

Value to encode (may be negative).

to

Destination buffer of tolen bytes.

tolen

Fixed output width in bytes.

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