URL
https://opencores.org/ocsvn/sha256_hash_core/sha256_hash_core/trunk
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Rev 8 |
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Line 55... |
use ieee.numeric_std.all;
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use ieee.numeric_std.all;
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entity sha256_padding is
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entity sha256_padding is
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port (
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port (
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words_sel_i : in std_logic_vector (1 downto 0) := (others => 'X'); -- selector for bitcnt insertion at the last block
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words_sel_i : in std_logic_vector (1 downto 0) := (others => 'U'); -- selector for bitcnt insertion at the last block
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one_insert_i : in std_logic; -- insert a leading one in the padding
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one_insert_i : in std_logic; -- insert a leading one in the padding
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bytes_ena_i : in std_logic_vector (3 downto 0) := (others => 'X'); -- byte lane selector lines
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bytes_ena_i : in std_logic_vector (3 downto 0) := (others => 'U'); -- byte lane selector lines
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bitlen_i : in std_logic_vector (63 downto 0) := (others => 'X'); -- 64bit message bit length
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bitlen_i : in std_logic_vector (63 downto 0) := (others => 'U'); -- 64bit message bit length
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di_i : in std_logic_vector (31 downto 0) := (others => 'X'); -- big endian input message words
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di_i : in std_logic_vector (31 downto 0) := (others => 'U'); -- big endian input message words
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do_o : out std_logic_vector (31 downto 0); -- padded output words
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do_o : out std_logic_vector (31 downto 0); -- padded output words
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error_o : out std_logic -- '1' if error in the byte_ena selectors
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error_o : out std_logic -- '1' if error in the byte_ena selectors
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);
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);
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end sha256_padding;
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end sha256_padding;
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