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cdci:labs:5 [2020/03/15 23:17] mihai.chiroiu [08. [10p] Digital signing] |
cdci:labs:5 [2021/04/16 16:15] (current) mihai.chiroiu |
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| ====== Lab05. Practical cryptography ====== | ====== Lab05. Practical cryptography ====== | ||
| + | |||
| + | <note warning> | ||
| + | Important read to be graded! | ||
| + | {{page>:cdci:rec&nofooter&noeditbutton&noheader}} | ||
| + | </note> | ||
| ===== Objectives ===== | ===== Objectives ===== | ||
| Line 21: | Line 26: | ||
| # (c) Mihai Chiroiu - CDCI | # (c) Mihai Chiroiu - CDCI | ||
| - | git clone -b labs --single-branch https://github.com/mihai-chiroiu/cdci.git | + | git clone https://github.com/mihai-chiroiu/cdci.git |
| - | git config user.email "student@upb.ro" | + | |
| </code> | </code> | ||
| Line 61: | Line 65: | ||
| - http://releases.mozilla.org/pub/firefox/releases/65.0b9/win64/en-US/ | - http://releases.mozilla.org/pub/firefox/releases/65.0b9/win64/en-US/ | ||
| - http://releases.mozilla.org/pub/firefox/releases/65.0b9/SHA256SUMS | - http://releases.mozilla.org/pub/firefox/releases/65.0b9/SHA256SUMS | ||
| - | |||
| - | <solution> | ||
| - | <code> | ||
| <solution> | <solution> | ||
| Line 217: | Line 218: | ||
| root@h1:/# openssl verify -verbose www.google.pem | root@h1:/# openssl verify -verbose www.google.pem | ||
| www.google.pem: OK | www.google.pem: OK | ||
| + | |||
| + | # if we use the first certificate | ||
| + | root@h1:/# openssl verify -verbose www.google.pem | ||
| + | C = US, ST = California, L = Mountain View, O = Google LLC, CN = www.google.com | ||
| + | error 20 at 0 depth lookup: unable to get local issuer certificate | ||
| + | error www.google.pem: verification failed | ||
| </code> | </code> | ||
| </solution> | </solution> | ||
