Entity: csrng_ctr_drbg_cmd
- File: csrng_ctr_drbg_cmd.sv
Diagram
Description
Copyright lowRISC contributors. Licensed under the Apache License, Version 2.0, see LICENSE for details. SPDX-License-Identifier: Apache-2.0
Description: csrng ctr_drbg commands module
Accepts all csrng commands
Generics
Generic name | Type | Value | Description |
---|---|---|---|
Cmd | int | 3 | |
StateId | int | 4 | |
BlkLen | int | 128 | |
KeyLen | int | 256 | |
SeedLen | int | 384 | |
CtrLen | int | 32 |
Ports
Port name | Direction | Type | Description |
---|---|---|---|
clk_i | input | ||
rst_ni | input | ||
ctr_drbg_cmd_enable_i | input | command interface | |
ctr_drbg_cmd_req_i | input | ||
ctr_drbg_cmd_rdy_o | output | ready to process the req above | |
ctr_drbg_cmd_ccmd_i | input | [Cmd-1:0] | current command |
ctr_drbg_cmd_inst_id_i | input | [StateId-1:0] | instantance id |
ctr_drbg_cmd_glast_i | input | gen cmd last beat | |
ctr_drbg_cmd_entropy_i | input | [SeedLen-1:0] | es entropy |
ctr_drbg_cmd_entropy_fips_i | input | es entropy)fips | |
ctr_drbg_cmd_adata_i | input | [SeedLen-1:0] | additional data |
ctr_drbg_cmd_key_i | input | [KeyLen-1:0] | |
ctr_drbg_cmd_v_i | input | [BlkLen-1:0] | |
ctr_drbg_cmd_rc_i | input | [CtrLen-1:0] | |
ctr_drbg_cmd_fips_i | input | ||
ctr_drbg_cmd_ack_o | output | final ack when update process has been completed | |
ctr_drbg_cmd_sts_o | output | final ack status | |
ctr_drbg_cmd_rdy_i | input | ready to process the ack above | |
ctr_drbg_cmd_ccmd_o | output | [Cmd-1:0] | |
ctr_drbg_cmd_inst_id_o | output | [StateId-1:0] | |
ctr_drbg_cmd_glast_o | output | ||
ctr_drbg_cmd_fips_o | output | ||
ctr_drbg_cmd_adata_o | output | [SeedLen-1:0] | |
ctr_drbg_cmd_key_o | output | [KeyLen-1:0] | |
ctr_drbg_cmd_v_o | output | [BlkLen-1:0] | |
ctr_drbg_cmd_rc_o | output | [CtrLen-1:0] | |
cmd_upd_req_o | output | update interface | |
upd_cmd_rdy_i | input | ||
cmd_upd_ccmd_o | output | [Cmd-1:0] | |
cmd_upd_inst_id_o | output | [StateId-1:0] | |
cmd_upd_pdata_o | output | [SeedLen-1:0] | |
cmd_upd_key_o | output | [KeyLen-1:0] | |
cmd_upd_v_o | output | [BlkLen-1:0] | |
upd_cmd_ack_i | input | ||
cmd_upd_rdy_o | output | ||
upd_cmd_ccmd_i | input | [Cmd-1:0] | |
upd_cmd_inst_id_i | input | [StateId-1:0] | |
upd_cmd_key_i | input | [KeyLen-1:0] | |
upd_cmd_v_i | input | [BlkLen-1:0] | |
ctr_drbg_cmd_sfifo_cmdreq_err_o | output | [2:0] | misc |
ctr_drbg_cmd_sfifo_rcstage_err_o | output | [2:0] | |
ctr_drbg_cmd_sfifo_keyvrc_err_o | output | [2:0] |
Signals
Name | Type | Description |
---|---|---|
cmdreq_ccmd | logic [Cmd-1:0] | signals |
cmdreq_id | logic [StateId-1:0] | |
cmdreq_glast | logic | |
cmdreq_entropy | logic [SeedLen-1:0] | |
cmdreq_entropy_fips | logic | |
cmdreq_adata | logic [SeedLen-1:0] | |
cmdreq_key | logic [KeyLen-1:0] | |
cmdreq_v | logic [BlkLen-1:0] | |
cmdreq_rc | logic [CtrLen-1:0] | |
prep_seed_material | logic [SeedLen-1:0] | |
prep_key | logic [KeyLen-1:0] | |
prep_v | logic [BlkLen-1:0] | |
prep_rc | logic [CtrLen-1:0] | |
prep_gen_adata_null | logic | |
rcstage_key | logic [KeyLen-1:0] | |
rcstage_v | logic [BlkLen-1:0] | |
rcstage_id | logic [StateId-1:0] | |
rcstage_rc | logic [CtrLen-1:0] | |
rcstage_ccmd | logic [Cmd-1:0] | |
rcstage_glast | logic | |
rcstage_adata | logic [SeedLen-1:0] | |
rcstage_fips | logic | |
fips_modified | logic | |
sfifo_cmdreq_rdata | logic [CmdreqFifoWidth-1:0] | cmdreq fifo |
sfifo_cmdreq_push | logic | |
sfifo_cmdreq_wdata | logic [CmdreqFifoWidth-1:0] | |
sfifo_cmdreq_pop | logic | |
sfifo_cmdreq_full | logic | |
sfifo_cmdreq_not_empty | logic | |
sfifo_rcstage_rdata | logic [RCStageFifoWidth-1:0] | rcstage fifo |
sfifo_rcstage_push | logic | |
sfifo_rcstage_wdata | logic [RCStageFifoWidth-1:0] | |
sfifo_rcstage_pop | logic | |
sfifo_rcstage_full | logic | |
sfifo_rcstage_not_empty | logic | |
sfifo_keyvrc_rdata | logic [KeyVRCFifoWidth-1:0] | keyvrc fifo |
sfifo_keyvrc_push | logic | |
sfifo_keyvrc_wdata | logic [KeyVRCFifoWidth-1:0] | |
sfifo_keyvrc_pop | logic | |
sfifo_keyvrc_full | logic | |
sfifo_keyvrc_not_empty | logic | |
gen_adata_null_q | logic | flops |
gen_adata_null_d | logic | flops |
Constants
Name | Type | Value | Description |
---|---|---|---|
CmdreqFifoDepth | int | 1 | |
CmdreqFifoWidth | int | KeyLen+BlkLen+CtrLen+1+2*SeedLen+1+StateId+Cmd | |
RCStageFifoDepth | int | 1 | |
RCStageFifoWidth | int | KeyLen+BlkLen+StateId+CtrLen+1+SeedLen+1+Cmd | |
KeyVRCFifoDepth | int | 1 | |
KeyVRCFifoWidth | int | KeyLen+BlkLen+CtrLen+1+SeedLen+1+StateId+Cmd |
Processes
- unnamed: ( @(posedge clk_i or negedge rst_ni) )
Type: always_ff
Instantiations
- u_prim_fifo_sync_cmdreq: prim_fifo_sync
Description
input request fifo for staging cmd request
- u_prim_fifo_sync_rcstage: prim_fifo_sync
Description
fifo to stage rc and command, waiting for update block to ack
- u_prim_fifo_sync_keyvrc: prim_fifo_sync