Privacy in medical emergency system: cryptographic and security aspects
Multilevel security is very important in Medical Emergency System MES since a database contained information with a variety of secret data. Information security was traditionally achieved by the use of encryption of data, but several stored and transmitted data in existing MES are not encrypted...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/9152/ http://irep.iium.edu.my/9152/ http://irep.iium.edu.my/9152/1/Privacy_in_medical_emergency_system_-_cryptographic_and_security_aspects.pdf |
| Summary: | Multilevel security is very important in Medical
Emergency System MES since a database contained
information with a variety of secret data. Information security
was traditionally achieved by the use of encryption of data, but
several stored and transmitted data in existing MES are not
encrypted. This paper provides a classification of data
sensitivity and suggests areas in cryptography to protect each
data at different levels of sensitivity. There are two components
in our work. The symmetric encryption AES with encryption
key of an asymmetric algorithm (RSA). The symmetric key will
be generated by application tier and be encrypted by RSA
algorithm. The second component is asymmetric encryption
(RSA) with client’s key pair generator. This paper shows the
results of processing time of data encryption between
asymmetric key algorithm (RSA) and symmetric key algorithm
(AES) which includes its key-distribution processing time with
client’s public key (RSA) from small to large amount of data.
We measured the performance of four encryption algorithms
(DES, 3DES, AES, and RSA) of our prototype distributed MES
system. 256-bit symmetric keys are equivalent in strength to
15380-bit RSA keys. This discovery suggests that selecting
appropriated algorithms for data encryption in different
ranges of data size affects processing time supporting Medical
Emergency System. |
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