mirror of
https://code.briarproject.org/briar/briar.git
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112d80420c
Also reduced hash function to 256 bits because our target security level is now 128 bits.
32 lines
987 B
Java
32 lines
987 B
Java
package org.briarproject.api;
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public interface AuthorConstants {
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/** The maximum length of an author's name in UTF-8 bytes. */
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int MAX_AUTHOR_NAME_LENGTH = 50;
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/**
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* The maximum length of a public key in bytes.
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* <p>
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* Public keys use SEC1 format: 0x04 x y, where x and y are unsigned
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* big-endian integers.
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* <p>
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* For a 256-bit elliptic curve, the maximum length is 2 * 256 / 8 + 1.
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*/
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int MAX_PUBLIC_KEY_LENGTH = 65;
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/**
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* The maximum length of a signature in bytes.
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* <p>
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* A signature is an ASN.1 DER sequence containing two integers, r and s.
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* The format is 0x30 len1 0x02 len2 r 0x02 len3 s, where len1 is
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* len(0x02 len2 r 0x02 len3 s) as a DER length, len2 is len(r) as a DER
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* length, len3 is len(s) as a DER length, and r and s are signed
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* big-endian integers of minimal length.
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* <p>
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* For a 256-bit elliptic curve, the lengths are one byte each, so the
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* maximum length is 2 * 256 / 8 + 8.
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*/
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int MAX_SIGNATURE_LENGTH = 72;
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}
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