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1d42c4f6de
Per XLS-0095, we are taking steps to rename ripple(d) to xrpl(d). This change specifically removes all copyright notices referencing Ripple, XRPLF, and certain affiliated contributors upon mutual agreement, so the notice in the LICENSE.md file applies throughout. Copyright notices referencing external contributions remain as-is. Duplicate verbiage is also removed.
123 lines
2.4 KiB
C++
123 lines
2.4 KiB
C++
#ifndef XRPL_PROTOCOL_SEED_H_INCLUDED
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#define XRPL_PROTOCOL_SEED_H_INCLUDED
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#include <xrpl/basics/Slice.h>
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#include <xrpl/basics/base_uint.h>
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#include <xrpl/protocol/tokens.h>
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#include <array>
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#include <optional>
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namespace ripple {
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/** Seeds are used to generate deterministic secret keys. */
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class Seed
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{
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private:
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std::array<uint8_t, 16> buf_;
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public:
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using const_iterator = std::array<uint8_t, 16>::const_iterator;
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Seed() = delete;
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Seed(Seed const&) = default;
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Seed&
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operator=(Seed const&) = default;
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/** Destroy the seed.
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The buffer will first be securely erased.
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*/
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~Seed();
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/** Construct a seed */
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/** @{ */
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explicit Seed(Slice const& slice);
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explicit Seed(uint128 const& seed);
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/** @} */
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std::uint8_t const*
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data() const
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{
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return buf_.data();
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}
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std::size_t
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size() const
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{
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return buf_.size();
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}
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const_iterator
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begin() const noexcept
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{
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return buf_.begin();
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}
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const_iterator
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cbegin() const noexcept
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{
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return buf_.cbegin();
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}
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const_iterator
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end() const noexcept
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{
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return buf_.end();
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}
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const_iterator
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cend() const noexcept
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{
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return buf_.cend();
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}
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};
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//------------------------------------------------------------------------------
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/** Create a seed using secure random numbers. */
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Seed
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randomSeed();
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/** Generate a seed deterministically.
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The algorithm is specific to Ripple:
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The seed is calculated as the first 128 bits
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of the SHA512-Half of the string text excluding
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any terminating null.
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@note This will not attempt to determine the format of
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the string (e.g. hex or base58).
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*/
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Seed
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generateSeed(std::string const& passPhrase);
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/** Parse a Base58 encoded string into a seed */
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template <>
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std::optional<Seed>
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parseBase58(std::string const& s);
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/** Attempt to parse a string as a seed.
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@param str the string to parse
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@param rfc1751 true if we should attempt RFC1751 style parsing (deprecated)
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* */
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std::optional<Seed>
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parseGenericSeed(std::string const& str, bool rfc1751 = true);
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/** Encode a Seed in RFC1751 format */
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std::string
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seedAs1751(Seed const& seed);
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/** Format a seed as a Base58 string */
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inline std::string
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toBase58(Seed const& seed)
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{
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return encodeBase58Token(TokenType::FamilySeed, seed.data(), seed.size());
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}
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} // namespace ripple
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#endif
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