Due to privacy concerns and the fact that the NAS does not support encryption at rest, The RGI exchange will use an encrypted file. Given that:
- the files can be large,
- the exchange happens behind the firewall
a shared secret (symmetric key) encryption will be sufficient.
Encryption Mechanism
Use AES cypher to encrypt and decrypt the file. This is supported by openssl and Java crypto implementations.
| Code Block | ||||
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[desktop@luxor RgiEnc]$ openssl rand -base64 128 > rgikey
[desktop@luxor RgiEnc]$ cat rgikey
optygS6e4C23kNgzpelDIG3pza8xAplkyEMXGXzZwIGV7oXyEMVS8ARyiRmJ+9Ea
OpSH3dQc1HnzCtXRvs2QaNqxZWWAAxz46MbtYlmFmKdNqad8OVn8GYYHA6h5GKYk
emMBxXuaPB3itVqEnIGS76M2sVf9qtZAA9H4VQ24TPE=
[desktop@luxor RgiEnc]$ openssl enc -aes-256-cbc -salt -iter 1000 -in FakeNames.txt -out FakeNames.enc -pass file:rgikey
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[desktop@luxor RgiEnc]$ openssl enc -d -aes-256-cbc -salt -iter 1000 -in FakeNames.enc -out FakeNames.csv -pass file:rgikey
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The challenge with a shared secret is the exchange of the key.
Key Sharing
Shared via Secure Exchange
SSHA generates the shared key and passes the key to TIS which adds the key to a property file
Java Keytool
The Java Keytool
Generate Keys in
| Code Block | ||||
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[desktop@luxor RgiEnc]$ openssl version OpenSSL 1.1.1d FIPS 10 Sep 2019 [desktop@luxor RgiEnc]$ openssl genrsa -des3 -out secret.key 2048 Generating RSA private key, 2048 bit long modulus (2 primes) .................................................................................+++++ ......................................................................................+++++ e is 65537 (0x010001) Enter pass phrase for secret.key: Verifying - Enter pass phrase for secret.key: [desktop@luxor RgiEnc]$ openssl rsa -in secret.key -out public.key -outform PEM -pubout Enter pass phrase for secret.key: writing RSA key | ||||
| Code Block | ||||
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[desktop@luxor RgiEnc]$ openssl rand -base64 128 > rgikey
[desktop@luxor RgiEnc]$ cat rgikey
optygS6e4C23kNgzpelDIG3pza8xAplkyEMXGXzZwIGV7oXyEMVS8ARyiRmJ+9Ea
OpSH3dQc1HnzCtXRvs2QaNqxZWWAAxz46MbtYlmFmKdNqad8OVn8GYYHA6h5GKYk
emMBxXuaPB3itVqEnIGS76M2sVf9qtZAA9H4VQ24TPE=
[desktop@luxor RgiEnc]$ openssl enc -aes-256-cbc -salt -iter 1000 -in FakeNames.txt -out FakeNames.enc1 -pass file:rgikey
[desktop@luxor RgiEnc]$ openssl rsautl -encrypt -inkey public.key -pubin -in rgikey -out rgikey.en |