NEW AUTO 3,1 *-------------------------------------- .DUMMY ZPTMP,6 .OR ZPTMP 29 bytes ZPCtxPtr .BS 2 ZPDataLen .BS 2 ZPChunkLen .BS 2 .ED *-------------------------------------- * DWORD Macros : Do NOT disturb carry with cpx, cpy... *-------------------------------------- .MA ADC32 ldx #3 ldy #0 clc :1 lda ]1,y adc ]2,y sta ]3,y iny dex bpl :1 .EM *-------------------------------------- .MA AND32 ldx #3 :1 lda ]1,x and ]2,x sta ]3,x dex bpl :1 .EM *-------------------------------------- .MA ORA32 ldx #3 :1 lda ]1,x ora ]2,x sta ]3,x dex bpl :1 .EM *-------------------------------------- .MA EOR32 ldx #3 :1 lda ]1,x eor ]2,x sta ]3,x dex bpl :1 .EM *-------------------------------------- .MA NOT32 ldx #3 :1 lda ]1,x eor #$FF sta ]2,x dex bpl :1 .EM *-------------------------------------- .MA MOV32 ldx #3 :1 lda ]1,x sta ]2,x dex bpl :1 .EM *-------------------------------------- .MA ROL32x :2 lda ]1+3 rol rol ]1 rol ]1+1 rol ]1+2 rol ]1+3 dex bne :2 .EM *-------------------------------------- MD5X.MD5 ldy #$ff .1 iny jsr SHARED.TXTPTRgY bne .1 sty ZPDataLen stz ZPDataLen+1 jsr MD5X.Init bcs MD5X.RTS pha save MD5 Context hMem jsr MD5X.Update.I jmp MD5X.Finalize.I *-------------------------------------- MD5X.Init >LDYAI S.MD5 jsr K.GetMem bcs MD5X.RTS >STYA ZPCtxPtr ldy #0 .1 lda MD5.ABCDINIT,y sta (ZPCtxPtr),y iny cpy #16 bne .1 lda #0 .2 sta (ZPCtxPtr),y iny cpy #S.MD5 bne .2 txa clc MD5X.RTS rts *-------------------------------------- MD5X.Update jsr K.GetMemPtr get MD5 Context >STYA ZPCtxPtr >LDYA FORPNT >STYA ZPDataLen MD5X.Update.I ldy #S.MD5.FINALIZED lda (ZPCtxPtr),y sec bne MD5X.RTS .1 lda ZPDataLen+1 More than 256 Bytes remaining to hash ? bne .3 yes lda ZPDataLen clc beq MD5X.RTS Len = O, all data processed cmp #64 More than 64 Bytes remaining to hash ? bcc .50 yes .3 lda #64 .50 sta ZPChunkLen Save Chunk Len jsr MD5UpdBC ldy #0 .51 jsr SHARED.TXTPTRgY Load Buffer with data sta MD5.Buf,y iny cpy ZPChunkLen bne .51 cpy #64 Full 64 Bytes DATA ? beq .58 * Append "$80" & Padding & original size lda #$80 no, Append $80 sta MD5.Buf,y lda #0 .52 iny Pad with 0 to 64 cpy #64 beq .53 sta MD5.Buf,y bra .52 .53 ldy #S.MD5.EXTRABIT Mark MD5 Context as Appended lda #$80 sta (ZPCtxPtr),y lda ZPChunkLen cmp #56 Enough room for BITCOUNT ? bcs .58 no jsr MD5AppBC .58 jsr MD5Transform jsr MD5UpdateABCD0 .8 lda ZPDataLen Substract Bytes processed from LEN sec sbc ZPChunkLen get back chunk Len sta ZPDataLen bcs .81 dec ZPDataLen+1 .81 lda TXTPTR Add Bytes processed to DATA clc adc ZPChunkLen sta TXTPTR bcc .1 inc TXTPTR+1 bra .1 *-------------------------------------- MD5X.Finalize pha jsr K.GetMemPtr >STYA ZPCtxPtr get MD5 Context MD5X.Finalize.I ldy #S.MD5.FINALIZED lda (ZPCtxPtr),y bne .1 jsr MD5ExtraChunk .1 ldy #S.MD5.ABCD0 .2 lda (ZPCtxPtr),y lsr lsr lsr lsr tax lda MD5.DIGITS,x jsr SHARED.FORPNTpn lda (ZPCtxPtr),y and #$0F tax lda MD5.DIGITS,x jsr SHARED.FORPNTpn iny cpy #S.MD5.ABCD0+16 bne .2 lda #0 jsr SHARED.FORPNTpn pla jmp K.FreeMem *-------------------------------------- * PRIVATE *-------------------------------------- * MD5AppendBitCount * In : * ZPCtxPtr = MD5 Context *-------------------------------------- MD5AppBC ldx #56 ldy #S.MD5.BITCOUNT Append 8 Bytes of BITCOUNT .1 lda (ZPCtxPtr),y sta MD5.Buf,x inx iny cpy #S.MD5.BITCOUNT+8 bne .1 ldy #S.MD5.FINALIZED Mark MD5 Context as Finalized lda #$80 sta (ZPCtxPtr),y rts *-------------------------------------- * MD5UpdateBitCount * In : * CL = Size (in bytes) to add to MD5 context * ZPCtxPtr = MD5 Context *-------------------------------------- MD5UpdBC stz ZPChunkLen+1 lda ZPChunkLen asl rol ZPChunkLen+1 asl times 8 to get bit count rol ZPChunkLen+1 asl rol ZPChunkLen+1 clc ldy #S.MD5.BITCOUNT adc (ZPCtxPtr),y sta (ZPCtxPtr),y iny lda ZPChunkLen+1 adc (ZPCtxPtr),y sta (ZPCtxPtr),y bcc .8 .1 iny lda (ZPCtxPtr),y inc sta (ZPCtxPtr),y bne .8 cpy #7 bne .1 .8 rts *-------------------------------------- * MD5ExtraChunk * In : * ZPCtxPtr = MD5 Context *-------------------------------------- MD5ExtraChunk ldy #S.MD5.FINALIZED lda #$80 sta (ZPCtxPtr),y Mark MD5 Context as "finalized" ldx #0 ldy #S.MD5.EXTRABIT Extra Bit already appended ? lda (ZPCtxPtr),y bne .1 lda #$80 sta MD5.Buf Add extra bit to buffer sta (ZPCtxPtr),y Mark Extrabit added inx .1 stz MD5.Buf,x pad with "0"... inx cpx #56 bne .1 ...until room for bitcount jsr MD5AppBC jsr MD5Transform *-------------------------------------- * MD5UpdateABCD0 * In: * ZPCtxPtr = MD5 Context *-------------------------------------- MD5UpdateABCD0 ldy #0 .1 clc ADC32 A+A0->A0, B, C, D.... .2 lda MD5.ABCD,y adc (ZPCtxPtr),y sta (ZPCtxPtr),y iny tya and #3 bne .2 cpy #16 bne .1 rts *-------------------------------------- * MD5Transform * In: * ZPCtxPtr = MD5 Context * 512 Bits Padded chunk in MD5.BUFFER64 * Out: * Updated MD5.ABCD *-------------------------------------- MD5Transform ldy #15 init ABCD Chunk with Context ABCD0 .1 lda (ZPCtxPtr),y sta MD5.ABCD,y dey bpl .1 stz MD5.i Start Proceed 0 to 63 bytes lda #0 lda MD5.i .2 lsr lsr lsr and #6 tax jsr MD5.XXXX inc MD5.i lda MD5.i cmp #64 bne .2 rts *-------------------------------------- MD5.XXXX jmp (.1,x) .1 .DA MD5.0015 .DA MD5.1631 .DA MD5.3247 .DA MD5.4863 *-------------------------------------- MD5.0015 >AND32 MD5.B,MD5.C,MD5.F1 >NOT32 MD5.B,MD5.F2 >AND32 MD5.F2,MD5.D,MD5.F2 >ORA32 MD5.F1,MD5.F2,MD5.F jmp MD5.XXXX.END *-------------------------------------- MD5.1631 >AND32 MD5.D,MD5.B,MD5.F1 >NOT32 MD5.D,MD5.F2 >AND32 MD5.F2,MD5.C,MD5.F2 >ORA32 MD5.F1,MD5.F2,MD5.F bra MD5.XXXX.END *-------------------------------------- MD5.3247 >EOR32 MD5.B,MD5.C,MD5.F >EOR32 MD5.F,MD5.D,MD5.F bra MD5.XXXX.END *-------------------------------------- MD5.4863 >NOT32 MD5.D,MD5.F1 >ORA32 MD5.F1,MD5.B,MD5.F2 >EOR32 MD5.F2,MD5.C,MD5.F *-------------------------------------- MD5.XXXX.END >MOV32 MD5.D,MD5.DTemp >MOV32 MD5.C,MD5.D >MOV32 MD5.B,MD5.C >ADC32 MD5.A,MD5.F,MD5.F lda MD5.i asl asl tay ldx #0 clc .1 lda MD5.K,y ADC32 MD5.K[i],MD5.F,MD5.F adc MD5.F,x sta MD5.F,x iny inx txa eor #4 DO NOT DISTURB carry with cpx !!! bne .1 ldy MD5.i lda MD5.g,y asl asl tay ldx #0 clc .2 lda MD5.Buf,y ADC32 M[g],MD5.F,MD5.F adc MD5.F,x sta MD5.F,x iny inx txa eor #4 DO NOT DISTURB carry with cpx !!! bne .2 ldy MD5.i ldx MD5.s,y get s[i] in x >ROL32x MD5.F >ADC32 MD5.B,MD5.F,MD5.B >MOV32 MD5.DTemp,MD5.A rts *-------------------------------------- MD5.ABCDINIT .HS 01234567.89ABCDEF.FEDCBA98.76543210 *-------------------------------------- MD5.s .DA #7,#12,#17,#22,#7,#12,#17,#22,#7,#12,#17,#22,#7,#12,#17,#22 .DA #5,#9,#14,#20,#5,#9,#14,#20,#5,#9,#14,#20,#5,#9,#14,#20 .DA #4,#11,#16,#23,#4,#11,#16,#23,#4,#11,#16,#23,#4,#11,#16,#23 .DA #6,#10,#15,#21,#6,#10,#15,#21,#6,#10,#15,#21,#6,#10,#15,#21 *-------------------------------------- MD5.g .DA #0,#1,#2,#3,#4,#5,#6,#7,#8,#9,#10,#11,#12,#13,#14,#15 .DA #1,#6,#11,#0,#5,#10,#15,#4,#9,#14,#3,#8,#13,#2,#7,#12 .DA #5,#8,#11,#14,#1,#4,#7,#10,#13,#0,#3,#6,#9,#12,#15,#2 .DA #0,#7,#14,#5,#12,#3,#10,#1,#8,#15,#6,#13,#4,#11,#2,#9 *-------------------------------------- MD5.K .HS 78A46AD7.56B7C7E8.DB702024.EECEBDC1 .HS AF0F7CF5.2AC68747.134630A8.019546FD .HS D8988069.AFF7448B.B15BFFFF.BED75C89 .HS 2211906B.937198FD.8E4379A6.2108B449 .HS 62251EF6.40B340C0.515A5E26.AAC7B6E9 .HS 5D102FD6.53144402.81E6A1D8.C8FBD3E7 .HS E6CDE121.D60737C3.870DD5F4.ED145A45 .HS 05E9E3A9.F8A3EFFC.D9026F67.8A4C2A8D .HS 4239FAFF.81F67187.22619D6D.0C38E5FD .HS 44EABEA4.A9CFDE4B.604BBBF6.70BCBFBE .HS C67E9B28.FA27A1EA.8530EFD4.051D8804 .HS 39D0D4D9.E599DBE6.F87CA21F.6556ACC4 .HS 442229F4.97FF2A43.A72394AB.39A093FC .HS C3595B65.92CC0C8F.7DF4EFFF.D15D8485 .HS 4F7EA86F.E0E62CFE.144301A3.A111084E .HS 827E53F7.35F23ABD.BBD2D72A.91D386EB *-------------------------------------- MD5.DIGITS .AS "0123456789abcdef" *-------------------------------------- MD5.ABCD MD5.A .BS 4 Chunk Level,A,B,C,D MD5.B .BS 4 MD5.C .BS 4 MD5.D .BS 4 MD5.F1 .BS 4 MD5.F2 .BS 4 MD5.DTemp .BS 4 MD5.F .BS 4 MD5.i .BS 1 MD5.Buf .BS 64 *-------------------------------------- MAN SAVE usr/src/sys/kernel.s.md5x LOAD usr/src/sys/kernel.s ASM