security

1// openssl genrsa -out key1 1024

2// openssl req -new -key key1 -out request1

3// openssl x509 -in request1 -text -noout

4// openssl genrsa -out masterkey 2048

5// openssl req -x509 -new -key masterkey -days 365 -out mastercert

6// openssl x509 -req -in request1 -out cert1 -CA mastercert -CAkey masterkey -CAcreateserial -CAserial ca.srlç

7// openssl x509 -req -in request2 -out cert2 -ca mastercert —cakey mjasterkey -cacreate seral -caserial ca2.srl

8// openssl -verify -cafile mastercert cert1

9// openssl rsautl -enc -inkey pubkey1 -pubin -in file -out file-enc

10// openssl rsautl -decrypt -inkey key1 -in filenc -out filenc

openssl rsa -in filenc -text -noout

1// openssl genrsa -out keyc1 1024

2// openssl -req -new -key keyc1 -out reqc1

3// integrite authenticite non repudiation 4// clef privee