comparison keyimport.c @ 1638:315fcba6960e

dropbearconvert: keyimport.c: fix BER encoding of secp521r1 keys (#69) keysizes >= 128 octets will be encoded with a 3 byte header which must be accounted by the optional-header Reproduce: master:~/build/dropbear$ ./dropbearkey -t ecdsa -s 521 -f K Generating 521 bit ecdsa key, this may take a while... master:~/build/dropbear$ ./dropbearconvert d o K L Key is a ecdsa-sha2-nistp521 key Wrote key to 'L' master:~/build/dropbear$ openssl ec < L read EC key unable to load Key 139769806448384:error:0D07209B:asn1 encoding routines:ASN1_get_object:too long:crypto/asn1/asn1_lib.c:91:
author Christian Hohnstädt <christian@hohnstaedt.de>
date Wed, 20 Mar 2019 16:42:47 +0100
parents 2d450c1056e3
children d32bcb5c557d
comparison
equal deleted inserted replaced
1637:cf8dc6204fb6 1638:315fcba6960e
1095 buf_incrwritepos(seq_buf, 1095 buf_incrwritepos(seq_buf,
1096 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 6, curve_oid_len, 0)); 1096 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 6, curve_oid_len, 0));
1097 buf_putbytes(seq_buf, curve_oid, curve_oid_len); 1097 buf_putbytes(seq_buf, curve_oid, curve_oid_len);
1098 1098
1099 buf_incrwritepos(seq_buf, 1099 buf_incrwritepos(seq_buf,
1100 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 1, 2+1+pubkey_size, 0xa0)); 1100 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 1,
1101 (pubkey_size +1 < 128 ? 2 : 3 ) +1 +pubkey_size, 0xa0));
1102
1101 buf_incrwritepos(seq_buf, 1103 buf_incrwritepos(seq_buf,
1102 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 3, 1+pubkey_size, 0)); 1104 ber_write_id_len(buf_getwriteptr(seq_buf, 10), 3, 1+pubkey_size, 0));
1103 buf_putbyte(seq_buf, 0); 1105 buf_putbyte(seq_buf, 0);
1104 err = ecc_ansi_x963_export(*eck, buf_getwriteptr(seq_buf, pubkey_size), &pubkey_size); 1106 err = ecc_ansi_x963_export(*eck, buf_getwriteptr(seq_buf, pubkey_size), &pubkey_size);
1105 if (err != CRYPT_OK) { 1107 if (err != CRYPT_OK) {