Berkenalan dengan Algoritma Hash MD5

MJHEA J_CAQJ TYJGA

jeaxiuytnecaguxFbejac'ine

Jcbn|atej ED? J' Vogdjhucujg  J`ha|%j`ha| aga aglnx o%ejac  `atj yoej`ag voguh dogbjg voyjg# lja` voyjg vogtagb dj|a `ocuj|bj# yjhjljt# |o`jg `o|kj# jtju yo`odj| voyjg yjevjh (yvje!' Gjeug# vo|gjh`jg jgdj eoeljqjgb`jg ljbjaejgj ka`j jdj yoyon|jgb qjgb lo|hjyac eogqjdjv vo|ij`jvjg jgdj dogbjg |o`jg jgdj e ocjcua ua o%ejac # djg tjgvj jgdj `otjhua to|gqjtj o%ejac qjgb da`a|ae d a`a|ae ncoh |o`jg jgdj yudjh dayjdjv djg daendama`jya yolocuegqj ncoh ya vogqjdjv (ygammo| !> !> Da djcje `ojejgjg agmn|ejya# ntogta`jya djg agtob|atjy voyjg eo|uvj`jg yujtu hjc qjgb yjgbjt vogtagb' Tjgvj da`otjhua yajvj`jh vogba|ae voyjg qjgb yologj|gqj djg jvj`jh voyjg logj|% logj| jyca dj|a ya vogba|ae# togtu agmn|ejya eogkjda tadj` }jcad' Ncoh `j|ogj atu# da djcje `|avtnb|jma to|djvjt mugbya hjyh yjtu j|jh qjgb lajyj dabugj`jg ugtu` eogboio` ntogta`jya djg agtob|atjy voyjg' Mugbya hjyh yjtu j|jh aga lo`o|kj dogbjg eogo|aej agvut voyjg dogbjg vjgkjgb voyjg yoelj|jgb djg eogb`ng}o|yagqj eogkjda `uevucjg yt|agb dogbjg vjgkjgb maxod  (tadj` lo|uljh!# ueuegqj lo|u`u|jg colah `oiac dj|avjdj u`u|jg yt|agb voyjg jyca' @uevucjg yt|agb hjyac `ng}o|ya aga lajyj dayolut eoyyjbo daboyt ' Da djcje mugbya hjyh yjtu j|jh yogda|a da`ogjc lo|ljbja ejije jcbn|atej ugtu` eoelujt eoyyjbo daboyt  dj|a yujtu voyjg# dajgtj|jgqj yoljbja lo|a`ut qjgb yjqj jelac dj|a lu`u ,@|avtnb|jma, `j|jgbjg \agjcda Euga|; jcbn|ate jcb n|atejj E D< ED4 E D? \AVOED \AVOE D \AVOED%:<8.
EDY (lat! :<8 :<8 :<8 :<8 :<8.
ELY :<8 ?:< ?:< ?:< ?:< ?:< ?:< ?:< ?:< :6<4 ?:<

@ncaya Qj Hjeva|  Qj Qj Tadj` Tadj` Qj Jdj i jijt Tadj` Tadj` Tadj`

@oto|jgbjg; Da boyt Ya{o (u`u|jg eoyyjbo daboyt ! EDY 5 Eoyyjbo Daboyt ELY 5 Eoyyjbo Lcni` Ya{o (u`u|jg lcn` voyjg! @ncaya 5 Tjl|j`jg# voyjg agvut lo|lodj qjgb eoeaca`a eoyyjbo daboyt qjgb yjej' yjej ' Yoljbja ingtnh# eayjc`jg yjqj eoeaca`a voyjg dogbjg aya (tjgvj tjgdj vota`! ,To`ga` Agm Ag mn|ejta`j n|ejta`j _AG Yugjg @jc @ jcakjbj akjbj Qnbqj`j|tj,# ej`j gacja hjyh dj|a voyjg to|yolut jdjcjh; voyjg

ED<

4::J:OO4?
voyjg

ED4

1=L?I21L9L16=MIMM=I68O?O9999:
voyjg

ED?

L2D=41=8D266=:L28:D:O1OM8L14:JM?

MJHEA J_CAQJ TYJGA

voyjg

\AVOED%:=6.9<6

voyjg

YHJ%:

voyjg

YHJ%
jeaxiuytnecaguxFbejac'ine

2J4486?L8J2LODJJIJID4J?LI<:=:D  J4J9L=19J8

1I?<4
Djcje ingtnh da jtjy to|cahjt ljhrj eoyyjbo daboyt  qjgb dahjyac`jg ncoh ejyagb%ejyagb mugbya hjyh lo|lodj%lodj' Eoyyjbo daboyt  qjgb dahjyac`jg to|da|a dj|a hu|um%hu|um qjgb to|yuyug jij`' Vo|cu da`otjhua# ljhrj eoyyjbo daboyt lu`jgcjh hjyac vogbog`|avyajg yujtu voyjg' Lu`jg hjyac og`|avya yujtu voyjg `j|ogj# tadj` jdj jcbn|taej qjgb layj eogboeljca`jg logtu` eoyyjbo daboyt  `o djcje logtu` voyjg jycagqj (  vcjag toxt  !' Mugbya hjyh yjtu j|jh kubj da`ogjc yoljbja mugbya `nev|oya (inev|oyyang mugitang !# magbo|v|agt # i|qvtnb|jvhai ihoi`yue# eoyyjbo agtob|atq ihoi` # ejgavucjtang dotoitang indo ' Yocjgkutgqj# yjqj hjgqj j`jg eoeljhjy jcbn|atej hjyh ED? yjkj' Jcbn|atej aga yudjh yjgbjt ueue dabugj`jg yoljbja ytjgdj| ugtu` ntogta`jya voyjg djg eogboio` agtob|atjy voyjg' ED? dalujt ncoh \ngjcd \a}oyt vjdj tjhug :11:' Jcbn|atej ED? eo|uvj`jg vogqoevu|gjjg dj|a jcbn|atej hjyh ED4 yotocjh da`otjhua ljhrj ED4 lo|hjyac dayo|jgb ncoh `|avtjgjcayay' Eoy`avug ED? colah cjeljt dj|a ED4# totjva ED? colah `ngyo|}jtam djcje doyjaggqj'

L' Voelujtjg Eoyyjbo Daboyt  Voelujtjg eoyyjbo dabboyt dogbjg jcbn|atej ED? davo|cahjt`jg djcje bjelj| lo|a`ut;

@ lat

voyjg ?:<

?:<

Q 6

Q :

?:< HED?

 JLID

:<8

' '

?:<

(:%?:< lat! :666''''666

vjgkjgb voyjg ?:<

'

Q 

Q   C%:

' '

?:<

?:<

HED?

HED?

HED? :<8

@ end <

?:< '

:<8

:<8

4

Vjddagb laty

:<8

:<8 :<8

Yodo|hjgjgqj yovo|ta aga; :' Jvvogdagb vjddagb laty (eogjeljh`jg lat%lat vogbbjgkjc!# <' Jvvogdagb cogbth (eogjeljh`jg gacja vjgkjgb voyjg jrjc!# 9' Agatajca{agb ED lummo| (eogbagayajcayjya vogqjgbbj ED!# 4' V|nioyyagb eoyyjbo ag := %rn|dy lcni`y (eoev|nyoy voyjg djcje lcn` :=%rn|dy!'

MJHEA J_CAQJ TYJGA

jeaxiuytnecaguxFbejac'ine

Ejyagb%ejyagb j`jg dakocjy`jg yoij|j |agia da ljrjh aga' :'  Jvvogdagb Vjddagb Laty (Eogjeljh`jg Lat%lat Vogbbjgkjc! Voyjg davjgkjgb`jg dogbjg eogjeljh`jg lat%lat vogbbjgkjc# yohagbbj eoeaca`a vjgkjgb (djcje lat! yjej dogbjg 448# enducn ?:<' Yohagbbj# vjgkjgb voyjg yotocjh datjeljh`jg lat%lat vogbbjgkjc jdjcjh =4 lat `u|jgb dj|a `ocavjtjg ?:<' Vogjeljhjg lat%lat vogbbjgkjc aga yocjcu dacj`u`jg yoljbja cjgb`jh vo|tjej# eoy`avug djcje `ngdaya jrjc vug voyjg yudjh eoeaca`a vjgkjgb yjej dogbjg 448# enducn ?:<' Vogjeljhjg aga dacj`u`jg dogbjg ij|j yovo|ta lo|a`ut; yjtu lat tugbbjc datjeljh`jg `o voyjg# `oeudajg datjeljh`jg lat gnc# yohagbbj voyjg qjgb yudjh dabjgkjc eogkjda yjej dogbjg 448# enducn ?:<' Yoij|j `oyocu|uhjg# vjcagb tadj` to|kjda vogjeljhjg yjtu lat yjkj djg vjcagb ljgqj` to|kjda vogjeljhjg yjevja ?:< lat' <'  Jvvogdagb Cogbth (Eogjeljh`jg Gacja Vjgkjgb Voyjg Jrjc! L eo|uvj`jg vjgkjgb voyjg yolocue dalo|a lat%lat vogbbjgkjc qjgb dagqjtj`jg dogbjg vjgkjgb =4 lat' @oeudajg datjeljh`jg dogbjg hjyac vjdj cjgb`jh vo|tjej' Ka`j# vjgkjgb voyjg colah dj|a < =4# ej`j qjgb dajelac jdjcjh vjgkjgbgqj djcje enducn < =4' Lat%lat aga datjeljh`jg yoljbja < lujh 9< lat rn|dy djg datjeljh`jg rn|d  yoeucj yoyuja dogbjg jtu|jg vo|tjej' Vjdj vnag aga# voyjg qjgb dahjyac`jg (yotocjh datjeljh`jg dogbjg lat vogbbjgkjc djg L! eoeaca`a vjgkjgb qjgb eo|uvj`jg `ocavjtjg dj|a ?:< lat' Layj da`jtj`jg# voyjg aga eoeaca`a yolujh gacja vjgkjgb qjgb eo|uvj`jg `ocavjtjg dj|a := (9< lat! rn|dy' 9' Agatajca{agb ED Lummo| (Eogbagayajcayjya Vogqjgbbj ED! ED? eogbbugj`jg vogqjgbbj yoljgqj` 4 lujh qjgb ejyagb%ejyagb eoeaca`a vjgkjgb 9< lat' Yohagbbj# vjgkjgb vogqjgbbj tntjc jdjcjh yoljgqj` 9< lat x 4 5 :<8 lat' Ejyagb% ejyagb vogqjgbbj dalo|a gjej J# L# I# D' Gjej%gjej aga daagayajcayjya dogbjg gacja% gacja djcje logtu` ho`yjdoyaejc yoljbja lo|a`ut; rn|d J; 6: <9 4? =2 rn|d L; 81 jl id om  rn|d I; mo di lj 18 rn|d D; 2= ?4 9< :6 Vo|cu da`otjhua# lolo|jvj }o|ya eogbbugj`jg gacja agayajcayjya qjgb lo|lodj qjatu; rn|d J; =2 4? <9 6: rn|d L; om id jl 81 rn|d I; 18 lj di mo rn|d D; :6 9< ?4 =2

MJHEA J_CAQJ TYJGA

jeaxiuytnecaguxFbejac'ine

4' V|nioyyagb Eoyyjbo ag := Lcni`  (Eoev|nyoy Voyjg djcje Lcn` :=%rn|dy! Vo|tjej hj|uy dadomagaya`jg oevjt mugbya vocogb`jv to|colah djhucu qjgb ejyagb% ejyagb yoljbja agvut tabj lujh rn|d dogbjg vjgkjgb 9< lat djg eogbhjyac`jg yolujh rn|d nutvut dogbjg vjgkjgb 9< lat' M(X#Q#[! 5 XQ } gnt(X! [ B(X#Q#[! 5 X[ } Q gnt([! H(X#Q#[! 5 X xn| Q xn| [ A(X#Q#[! 5 Q xn| (X } gnt([!! Voe|nyoyjg lcn` voyjg to|da|a jtjy oevjt tjhjv# tajv vutj|jg eoelujt := nvo|jya yo|uvj lo|djyj|`jg vjdj mugbya gng%cagoj| M# tjeljhjg enducj|# djg |ntjya `o `a|a' Cjgb`jh%cjgb`jh qjgb to|kjda yoljbja lo|a`ut; .+ V|nyoy djcje ejyagb%ejyagb lcn` := rn|d +. Mn| a 5 6 tn G.:=%: dn .+ Yjcag lcn` a `o djcje X +. Mn| k 5 6 tn :? dn Yot XPkU tn EPa+:=kU' ogd . + ogd cnnv dj|a k +. .+ Yaevjg J yoljbja JJ# L yoljbja LL# I yoljbja II# D yoljbja DD+. JJ 5 J LL 5 L II 5 I DD 5 D .+ Vutj|jg : +. .+ Cot Pjlid ` y aU dognto tho nvo|jtang j 5 l  ((j  M(l#i#d!  XP`U  TPaU! 333 y!' +. .+ Cj`u`jg := nvo|jya lo|a`ut aga PJLID 6 2 :U P DJLI : :<
+. P IDJL < :2 9U P IDJL = :2 2U PIDJL :6 :2 ::U PIDJL :4 :2 :?U

.+ Vutj|jg < +. .+ Cot Pjlid ` y aU dognto tho nvo|jtang j 5 l  ((j  B(l#i#d!  XP`U  TPaU! 333 y!' .+ Cj`u`jg := nvo|jya lo|a`ut aga +. PJLID : ? :2U PDJLI = 1 :8U PIDJL :: :4 PJLID ? ? <:U PDJLI :6 1 <
cj`u`jg cjgb`jh lo|a`ut +. JJ LL II DD cnnv dj|a a +.

P LIDJ 9 << 4 U P LIDJ 2 << 8 U PLIDJ :: << :
+. :1U <9U <2U 9:U

PLIDJ 6 PLIDJ 4 PLIDJ 8 PLIDJ :<

<6 <6 <6 <6

<6U <4U <8U 9
+. 9?U 91U 49U 42U

PLIDJ :4 <9 9=U PLIDJ :6 <9 46U PLIDJ = <9 44U PLIDJ < <9 48U

+. ?:U ??U ?1U =9U

PLIDJ ? <: PLIDJ : <: PLIDJ :9 <: PLIDJ 1 <:

?
MJHEA J_CAQJ TYJGA

jeaxiuytnecaguxFbejac'ine

I' Vogbbugjjg ED?

Yjgbjt yuyjh eoeo|a`yj `ojycajg yolujh voyjg dogbjg eoeljgdagb`jg voyjg jyca dogbjg voyjg qjgb da`a|ae`jg `ovjdj `atj' Jvjcjba ka`j voyjg qjgb j`jg daljgdagb`jg lo|u`u|jg yjgbjt loyj|' J`jg yjgbjt yuyjh eogdoto`ya vo|uljhjg qjgb yjgbjt `oiac eogbagbjt `oto|ljtjyjg ejtj qjgb `atj vugqj' Mugbya hjyh djvjt dabugj`jg ugtu` eogdoto`ya agtob|atjy voyjg.djtj' Ij|jgqj dogbjg eoeljgb`at`jg eoyyjbo daboyt  dj|a voyjg qjgb `atj to|aej' @oeudajg# eoyyjbo daboyt  voyjg qjgb `atj to|aej daljgdagb`jg dogbjg eoyyjbo daboyt  voyjg jyca' Jcbn|atej hjyh ED? yjgbjt vo`j to|hjdjv vo|uljhjg yo`oiac jvjvug# eoy`avug vo|uljhjg atu hjgqj yjtu hu|um totjva j`jg eogbhjyac`jg eoyyjbo daboyt qjgb yjej yo`jca lo|lodj' Gjeug# `jdjgb `jcj `o|jhjyajjg voyjg tadj` to|cjcu `atj lutuh`jg' Gjeug# `atj yjgbjt eoelutuh`jg `oqj`agjg ljhrj voyjg logj|%logj| da`a|ae ncoh ya vogba|ae' Hjc aga yo|agb dayolut dogbjg ntogta`jya' Ncoh `j|ogj atu# daiavtj`jgcjh `ngyov tjgdj tjgbjg dabatjc' Qjgb daej`yud tjgdj tjgbjg dabatjc da yaga lu`jgcjh tjgdj tjgbjg qjgb da%yijg eogbbugj`jg yijggo| # yohagbbj layj datoevoc`jg vjdj yujtu dn`ueog# eocjag`jg yujtu gacja yt|agb qjgb dahjyac`jg dj|a vo|hatugbjg `|avtnb|jmay qjgb lo|bjgtugb vjdj voyjg qjgb da`a|ae djg vogba|ae voyjg to|yolut' Da lu`u ,Jvvcaod I|qvtnb|jvhq
MJHEA J_CAQJ TYJGA

jeaxiuytnecaguxFbejac'ine

D' @oejgjgjg Jcbn|atej E D?

Yovo|ta qjgb yudjh yjqj yolut`jg yolocuegqj da jtjy# ljhrj ED? aga layj dabugj`jg ugtu` eogij|a agtob|atjy yujtu voyjg djg tjgdj tjgbjg dabatjc' Gjeug# to|gqjtj jcbn|taej ED? aga datoeu`jg `ocoejhjg' Qjatu to|kjdagqj `ncaya (tjl|j`jg! vjdj eoyyjbo daboyt  qjgb dahjyac`jg' Dogbjg vjgkjgb eoyyjbo daboyt  :<8 lat# ej`j dalutuh`jg vo|inljjg yoij|j l|uto mn|io yoljgqj` <:<8 `jca' Vjdj jrjcgqj# uyjhj ugtu` eogoeu`jg eoyyjbo daboyt  qjgb yjej aga dajgbbjv tadj` eugb`ag eogbagbjt rj`tu qjgb dalutuh`jg yjgbjt cjej' Gjeug# vjdj tjhug :11= lo|hjyac datoeu`jg `ncaya ncoh Dnllo|tag eoy`avug lu`jg `ocoejhjg qjgb mjtjc' Hjc aga eogdn|ngb vj|j `|avtjgjcayay lo|uyjhj ugtu` eogij|a `ocoejhjg qjgb to|djvjt vjdj jcbn|atej ED?' Djg to|lu`ta# vjdj : Ej|ot <66? J|kog Cogyt|j# Xajnuqug Rjgb# djg Loggo do Ro|bo| eogoeu`jg duj lujh yo|tama`jt X'?61 dogbjg `ugia vulca` qjgb lo|lodj totjva eoeaca`a gacja hjyh qjgb yjej' Lolo|jvj hj|a `oeudajg# ]cjytaeac @caej lo|hjyac eoelujt vo|lja`jg ugtu` jcbn|atej Cogyt|j d``' djg djvjt eogbhjyac`jg `ncaya eoyyjbo daboyt  ED? hjgqj djcje rj`tu lolo|jvj kje yjkj eogbbugj`jg VI' O' \omo|ogya

P\A]1
\a}oyt# \' Tho ED? Eoyyjbo Daboyt Jcbn|athe ' \MI :9<:' EAT jgd \YJ Djtj Yoiu|atq# Agi' Jv|ac :11<' Euga|# \agjcda' @|avtnb|jma' Ljgdugb; Agmn|ejta`j' <66=' httv;..ad'ra`avodaj'n|b.ed?' daj`yoy <8 N`tnlo| <661'

M' Jlnut Eo gai` j'`'j |ojc gjeo ijtih eo jt eoelo| nm oejac u|c adnc{

; jeiucag ; yug%inncag ; Mjhea Jucaqj Tyjga ; ijevu{# agto|got ijmo# adry mn|ue ; GAI ; jeaxiuytnecaguxFbejac'ine# yjgaiuytnecaguxFqjhnn'ine ; httv;..agmagatq'uag%yu`j'ji'ad Pdojd*** yo|}o|%gqj da`oejgjag gah>U ; iqlo|hol# y"tn# Eacn Hnmmejg# Caguy Tn|}jcdy# jingb

MJHEA J_CAQJ TYJGA

jeaxiuytnecaguxFbejac'ine

B' JYIAA J|t █████ ██████ █████ █████████████ █████ █████████████████ █████ ███████ █████ ██████ █████ ██████ █████ ██████ █████ █████ █████ █████ █████ █████ ██████ █████ ██████ █████ ██████ █████ ███████ █████ ███████████████████████████ ███████████████████████ █████████████████

█ ███ █████ ███ █ █████ █████ █████ █████ █████ █████ █████ █████ █████ █████ █████

████████████████ ███████████████████████ ███████████████████████████ ███████ █████ ██████ █████ ██████ █████ ██████ █████ █████ █████ █████ █████ █████ █████ █████ ██████ █████ ██████ █████ ██████ █████ ███████ █████ █████████████████ █████ █████████████ █████ ███████

_ga}o|yatjy Aycje Gobo|a Yugjg @jcakjbj

JYIAA lq Mjhea Jucaqj Tyjga j'`'j jeiucag

┃┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┖ ┌▙▙▙▙▙▜▚ \ O C O J Y O a G M N ▚▜▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙┌ └┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┘ ┃┆┆┖ ┃┆┆┖ ┌▙▙┌ Tatco ; @gnragb Tho ED? Jcbn|athe ┌▙▙┌ ┌▙▙┌ \ocoj{o gjeo ; yug %{agoP6x6:%6?<6:6U%@gnragb^Tho^ED?^Jcbn|athe' gmn┌▙▙┌ ┌▙▙┌ Qoj| ; <6:6 ┌▙▙┌ ┌▙▙┌ Bog|o ; Ocoit|ngai Ejbj{ago ┌▙▙┌ ┌▙▙┌ Ejdo ; 96 Eoa <6:6 ┌▙▙┌ ┌▙▙┌ Tntjc ; : ┌▙▙┌ ┌▙▙┌ Maco tqvo ; toxt ┌▙▙┌ ┌▙▙┌ Maco ya{o ; <:'? @l ┌▙▙┌ ┌▜▜┌ Cjgbujbo ; Agdngoyajg ┌▜▜┌ ┌▚▚┌ Ntho|{ ; Eq Ma|{t o %{ago# ogknq at ┌▚▚┌ └┆┆┘ └┆┆┘ ┃┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┖ ┌▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙▙┌ └┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┆┘