manual crypto

[mmotyka at lsil.com]

I've got sources kicking around somewhere that do this with noise
patterns in monochrome bitmaps. I'm not sure if the effect using ascii
is achieved in the exact same way - no doubt it is very closely related
but not as dense as the bitmaps.

Mike
>
>Well, not crypto but stego.
>
>I was looking for ways to use existing infrastructure for
>transporting ascii messages to send info which is not
>harvestable by machines.
>
>This came up:
>
>It is intended for cross-eyed free viewing.  Cross your eyes until the
>Vs and Xs at the top and bottom overlap with the adjacent ones.
>
>V              V              V              V              V
>OIWEQPOISDFBKJFOIWEQPOISDFBKJFOIWEQPOISDFBKJFOIWEQPOISDFBKJF
>EDGHOUIEROUIYWEVDGHOXUIEROIYWEVDGHEOXUIEOIYWEVDGHEOXUIEOIYWE
>KJBSVDBOIWERTBAKJBSVEDBOIWRTBAKJBSOVEDBOWRTBAKJBSOVEDBOWRTBA
>SFDHNWECTBYUVRGSFDHNYWECTBUVRGSFDHCNYWECBUVRGSFDHCNYWECBUVRG
>HNOWFHLSFDGWVRGHNOWFGHLSFDWVRGHNOWSFGHLSDWVRGHNLOWSFGLSDWVRG
>YPOWVXTNWFECHRGYPOWVEXTNWFCHRGYPOWNVEXTNFCHRGYPWOWNVETNFCHRG
>SVYUWXRGTWVETUISVYUWVXRGTWVETUISVYUWVXRGWVETUISVYUWVXRGWVETU
>WVERBYOIAWEYUIVWVERBEYOIAWEYUIVWVERBEYOIWEYUIVWLVERBEOIWEYUI
>EUIOETOUINWEBYOEUIOEWTOUINWEBYOEUIOEWTOUNWEBYOETUIOEWOUNWEBY
>WFVEWVETN9PUW4TWFVEWPVETN9UW4TWFVETWPVET9UW4TWFBVETWPET9UW4T
>NOUWQERFECHIBYWNOUWQXERFECIBYWNOUWFQXERFCIBYWNOFUWFQXRFCIBYW
>VEHWETUQECRFVEVEHWERTUQECFVEVEHWQERTUQCFVEVEOHWQERUQCFVE
>UIWTUIRTWUYWQCRUIWTUYIRTWUWQCRUIWTXUYIRTUWQCRUIBWTXUYRTUWQCR
>IYPOWOXNPWTHIECIYPOWTOXNPWHIECIYPONWTOXNWHIECIYLPONWTXNWHIEC
>R9UHWVETPUNRQYBR9UHWVETPUNRQYBR9UHWVETPUNRQYBR9UHWVETPUNRQYB
>
>Any sources for making these ?
>
>I know that it can be machine-read, by extracting 3D figure
>and OCR-ing, but not today easily and in quantity.