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Rajkishore Prasad / Indian Journal of Computer Science and Engineering (IJCSE)
SRI RAMSHALAKA: A VEDIC METHOD
OF TEXT ENCRYPTION AND
DECRYPTION
Rajkishore Prasad
University Department of Electronic Science ,
B.R.A. Bihar University Muzaffarpur, Bihar, India.
Email:[email protected]
Abstract: This paper investigates the usability of SriRamshalakha, a vedic tool used in Indian Astrology,
in the encryption and decryption of plain English text. Sri Ram Shalaka appears in Sri RamChartmanas,
one of the very popular sacred epic of Hindu religion, written by great Saint Tulsidasji. SriRamshalakha
is used to fetch/infer the approximate answer of questions/decisions by the believers. Basically, the said
shalaka embed nine philosophical verses from Sri RamCharitmanas in a matrix form based on which
answers to queries are inferred and ingrained. However, none of the verses are visible and directly
readable. Here we take SriRamshalakha as the ancient Indian method of text encryption and decryption
and based on the same algorithms for the encryption and decryption of plain English text are proposed.
The developed algorithms are presented with examples and possibility of its use in steganography and
text to image transformation are also discussed.
Keywords: Encryption; Decryption; cryptography; steganography.
1. Introduction
SRI RamShalaka Prashanawali is not being introduced here rather it is well known to people who know Sri
RamCharitmanas , a Hindi epic by great Saint Tulsidasji [Tulsidas, 1563]. SRI RamShalaka Prashanawali is
one of the tools used in Vedic Astrology in prediction. It is used to answer or predict the outcome of any activity
or plan in advance and thus it is like a magic or miracle for those who have faith in it. It is said that this
prediction method had been used by Sri Ram to perform his day to day royal and personal duties. In the name
Sri RamShalaka Prashanawali
the word Sri Ram refers to Lord Ram, Shalaka means matrix and the word
prashanawali means questionnaire. Originally, who developed this method first in the Ancient India is not
known but it became part of the Sri Ram CharitManas, an epic written in 16th century by Tulsidas thus it is also
known as Tulsidas’ SriRamShalaka Prashanawali . Hereafter the word shalaka will alone refer to
SriRamShalaka. SriRamShalaka as appears in the SriRamCharitManasa epic is shown in Fig.1.
Basically, SriRamShalaka hides nine verses or chopai of Philosophical meaning, from which solution
to any actions/questions related to our activities and lives are inferred and ingrained, in a square matrix of size
15x15. All the nine verses used in shalaka are given in the first column of the Table 1. These verses are broken
into independent akshar (Hindi Letters) and such akshars are entered as the elements of 15x15 matrix, as shown
in Fig.1, following some rules to be discussed later. The constituent akshars (Hindi letters) used from each
verse in the construction of shalaka are also shown in the third column of the Table.1. Each verse in shalaka has
been represented by 25 unique akshars or Hindi letters despite the fact that each verse does not contain exactly
25 Hindi letters. For the same either some letters have been combined or separated to make total number of
representative elemental akshar 25. In the shalaka shown in Fig.1, it is hard to see/notice presence of any of the
verses in directly readable form, however, following certain process, to be discussed later, each of the nine
verses can be obtained or decoded. This means actual text can be made concealed in Shalaka format and all the
hidden verses can be decrypted using some key. In the shalaka the characters of the original text are not
changed but their orders are changed. There have been developments of many encryption algorithms for the text
by scrambling the characters in different ways. SriRamShalaka uses its own way based on matrix theory and to
the best of my knowledge no work on use of SriRamShalaka in the text encryption has been reported so far.
Thus in this paper SriRamShalaka is taken as one of the interesting ways of message encryption/decryption
using the matrix theory and based on the same, algorithms are proposed to encrypt/decrypt plain English text.
ISSN : 0976-5166
Vol. 4 No.3 Jun-Jul 2013
225
Rajkishore Prasad / Indian Journal of Computer Science and Engineering (IJCSE)
Fig,1 SriRamshaalaka Prashanaw
wali ( Taken from
m Sri RamCharitm
manasa written by
b Sant Tulsidasjji in 16th Century)
Table 1.. Verses used in Sri RamShalaka and their charactterization
9 VERSES/CO
OUPLET(CH
HOPAI)
1.
mwlw rm
rmg mÀg ymem nbthe
nb vqrsrn bl fUtb
tblt ;wönthe (Sun  
2.
Œrcrm
rm ldh fUesu mc fUtst
f †=gâ htrF ffUtutum˜ vwh htst  ( 
3.
W"hrn
rnk yk; l ntuR rlctn
tnq fUt˜ lurb rsrb htJl htnq (Udhree 
4.
rcr"" cm mwsl fUwmkd; vhné VUrl brl mbb rls dwl ylwmhné
né (  
5.
ntuRrn mtuR stu htb hra htFt fUtufUrh ;fUo cZtJi
c mtFt ( Hoii 
6.
bw= bbkd˜bg mk; mbtsqsq stu sd skdb ;eh:: htsq  (Mud 
7.
dh˜
˜ mw"t rhvw fUhné rb;tRo
rb; dtuv= rmk"w yll˜ rm;˜tRo     (  
8.
cÁll fUwcuh mwhum mbeht hl màbwF "rh fUtý
týâ l "eht (Varunn 
9.
mwVU˜
˜ bltuh: ntuýâ ;wönthu
nt htbw ˜Flw mwrl CY mwFthu (Sufall 
No. of Letters
23
25 AKSH
HARs used in
n Shalaka
mw lw rm g m Àg y me m n b t he vq rs rn b
l fUtt b lt ;w ön t he