=head1 NAME
BN_bn2bin, BN_bin2bn, BN_bn2hex, BN_bn2dec, BN_hex2bn, BN_dec2bn,
-BN_print, BN_print_fp, BN_bn2mpi, BN_mpi2bn - Format conversions
+BN_print, BN_print_fp, BN_bn2mpi, BN_mpi2bn - format conversions
=head1 SYNOPSIS
BN_bn2hex() and BN_bn2dec() return printable strings containing the
hexadecimal and decimal encoding of B<a> respectively. For negative
numbers, the string is prefaced with a leading '-'. The string must be
-Free()d later.
+freed later using OPENSSL_free().
BN_hex2bn() converts the string B<str> containing a hexadecimal number
to a B<BIGNUM> and stores it in **B<bn>. If *B<bn> is NULL, a new
B<fp>.
BN_bn2mpi() and BN_mpi2bn() convert B<BIGNUM>s from and to a format
-that consists of the number's length in bytes represented as a 3-byte
+that consists of the number's length in bytes represented as a 4-byte
big-endian number, and the number itself in big-endian format, where
the most significant bit signals a negative number (the representation
of numbers with the MSB set is prefixed with null byte).
=head1 SEE ALSO
-L<bn(3)|bn(3)>, L<err(3)|err(3)>, L<BN_zero(3)|BN_zero(3)>,
+L<bn(3)|bn(3)>, L<ERR_get_error(3)|ERR_get_error(3)>, L<BN_zero(3)|BN_zero(3)>,
L<ASN1_INTEGER_to_BN(3)|ASN1_INTEGER_to_BN(3)>,
L<BN_num_bytes(3)|BN_num_bytes(3)>