SSL Report:
www.kfb.or.kr
(211.168.153.100)
Assessed on: Thu, 19 Jun 2025 08:16:12 UTC
| Clear cache
Summary
0
20
40
60
80
100
Certificate
Protocol Support
Key Exchange
Cipher Strength
Visit our documentation page
for more information, configuration guides, and books. Known issues are documented
here.
This server does not support Forward Secrecy with the reference browsers.
Grade capped to B.
MORE INFO »
This server does not support TLS 1.3. MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
|
Server Key and Certificate #1
|
|
| Subject |
*.kfb.or.kr
Fingerprint SHA256: 7a362eaefa6398d4f2ef1dd6e3f93055dffc40c253c1087c424e03001c2a374b Pin SHA256: NHttcpen6ZBhjFY+CXTkuLJaTbv7u05dRz3huMY3tXo= |
| Common names | *.kfb.or.kr |
| Alternative names | *.kfb.or.kr kfb.or.kr |
| Serial Number | 01c8c2486b92e69383e2818120e7097e |
| Valid from | Mon, 28 Apr 2025 00:00:00 UTC |
| Valid until | Fri, 29 May 2026 23:59:59 UTC (expires in 11 months and 10 days) |
| Key | RSA 2048 bits (e 65537) |
| Weak key (Debian) | No |
| Issuer | GeoTrust TLS RSA CA G1
AIA: http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt |
| Signature algorithm | SHA256withRSA |
| Extended Validation | No |
| Certificate Transparency | Yes (certificate) |
| OCSP Must Staple | No |
| Revocation information |
CRL, OCSP CRL: http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl OCSP: http://status.geotrust.com |
| Revocation status | Good (not revoked) |
| DNS CAA | No (more info) |
| Trusted | Yes
Mozilla Apple Android Java Windows |
Certification Paths |
Configuration
| Protocols | |
| TLS 1.3 | No |
| TLS 1.2 | Yes |
| TLS 1.1 | No |
| TLS 1.0 | No |
| SSL 3 | No |
| SSL 2 | No |
| Cipher Suites | ||
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# TLS 1.2 (suites in server-preferred order)
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||
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CCM_8 (0xc0a1)
WEAK
|
256 | |
TLS_RSA_WITH_AES_256_CCM (0xc09d)
WEAK
|
256 | |
TLS_RSA_WITH_ARIA_256_GCM_SHA384 (0xc051)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CCM_8 (0xc0a0)
WEAK
|
128 | |
TLS_RSA_WITH_AES_128_CCM (0xc09c)
WEAK
|
128 | |
TLS_RSA_WITH_ARIA_128_GCM_SHA256 (0xc050)
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)
WEAK
|
256 | |
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 (0xc0)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)
WEAK
|
128 | |
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xba)
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)
WEAK
|
256 | |
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)
WEAK
|
128 | |
TLS_RSA_WITH_SEED_CBC_SHA (0x96)
WEAK
|
128 | |
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)
WEAK
|
128 | |
| Handshake Simulation | |||
| Android 4.4.2 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Android 5.0.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_128_GCM_SHA256 No FS |
| Android 6.0 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_128_GCM_SHA256 No FS |
| Android 7.0 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Android 8.0 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Android 8.1 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Android 9.0 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| BingPreview Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Chrome 49 / XP SP3 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_128_GCM_SHA256 No FS |
| Chrome 69 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Chrome 70 / Win 10 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Chrome 80 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Firefox 31.3.0 ESR / Win 7 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_CBC_SHA No FS |
| Firefox 47 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_CBC_SHA No FS |
| Firefox 49 / XP SP3 | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_CBC_SHA No FS |
| Firefox 62 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_CBC_SHA No FS |
| Firefox 73 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_CBC_SHA No FS |
| Googlebot Feb 2018 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win 8.1 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win Phone 8.1 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_CBC_SHA256 No FS |
| IE 11 / Win Phone 8.1 Update R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 15 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 16 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 18 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 13 / Win Phone 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Java 8u161 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Java 11.0.3 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Java 12.0.1 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| OpenSSL 1.0.1l R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| OpenSSL 1.0.2s R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| OpenSSL 1.1.0k R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| OpenSSL 1.1.1c R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 6 / iOS 6.0.1 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_CBC_SHA256 No FS |
| Safari 7 / iOS 7.1 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_CBC_SHA256 No FS |
| Safari 7 / OS X 10.9 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_CBC_SHA256 No FS |
| Safari 8 / iOS 8.4 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_CBC_SHA256 No FS |
| Safari 8 / OS X 10.10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_CBC_SHA256 No FS |
| Safari 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 9 / OS X 10.11 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 10 / iOS 10 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 10 / OS X 10.12 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 12.1.2 / MacOS 10.14.6 Beta R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 12.1.1 / iOS 12.3.1 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Apple ATS 9 / iOS 9 R |
Server sent fatal alert: handshake_failure |
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| Yahoo Slurp Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| YandexBot Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
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# Not simulated clients (Protocol mismatch)
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| Android 2.3.7 No SNI 2 |
Protocol mismatch (not simulated) |
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| Android 4.0.4 |
Protocol mismatch (not simulated) |
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| Android 4.1.1 |
Protocol mismatch (not simulated) |
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| Android 4.2.2 |
Protocol mismatch (not simulated) |
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| Android 4.3 |
Protocol mismatch (not simulated) |
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| Baidu Jan 2015 |
Protocol mismatch (not simulated) |
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| IE 6 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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| IE 7 / Vista |
Protocol mismatch (not simulated) |
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| IE 8 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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| IE 8-10 / Win 7 R |
Protocol mismatch (not simulated) |
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| IE 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
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| Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
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| Java 7u25 |
Protocol mismatch (not simulated) |
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| OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
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| Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
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| Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
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| (1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it. | |||
| (2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI. | |||
| (3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version. | |||
| (R) Denotes a reference browser or client, with which we expect better effective security. | |||
| (All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE). | |||
| (All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake. | |||
| Protocol Details | |
| Secure Renegotiation | Supported |
| Secure Client-Initiated Renegotiation | No |
| Insecure Client-Initiated Renegotiation | No |
| BEAST attack | Mitigated server-side (more info) |
| POODLE (SSLv3) | No, SSL 3 not supported (more info) |
| POODLE (TLS) | No (more info) |
| Zombie POODLE | No (more info)
TLS 1.2 : 0x003c
|
| GOLDENDOODLE | No (more info)
TLS 1.2 : 0x003c
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| OpenSSL 0-Length | No (more info)
TLS 1.2 : 0x003c
|
| Sleeping POODLE | No (more info)
TLS 1.2 : 0x003c
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| Downgrade attack prevention | Unknown (requires support for at least two protocols, excl. SSL2) |
| SSL/TLS compression | No |
| RC4 | No |
| Heartbeat (extension) | No |
| Heartbleed (vulnerability) | No (more info) |
| Ticketbleed (vulnerability) | No (more info) |
| OpenSSL CCS vuln. (CVE-2014-0224) | No (more info) |
| OpenSSL Padding Oracle vuln. (CVE-2016-2107) |
No (more info) |
| ROBOT (vulnerability) | No (more info) |
| Forward Secrecy | No WEAK (more info) |
| ALPN | Yes http/1.1 |
| NPN | Yes http/1.1 |
| Session resumption (caching) | No (IDs assigned but not accepted) |
| Session resumption (tickets) | No |
| OCSP stapling | No |
| Strict Transport Security (HSTS) | No |
| HSTS Preloading | Not in: Chrome Edge Firefox IE |
| Public Key Pinning (HPKP) | No (more info) |
| Public Key Pinning Report-Only | No |
| Public Key Pinning (Static) | No (more info) |
| Long handshake intolerance | No |
| TLS extension intolerance | No |
| TLS version intolerance | No |
| Incorrect SNI alerts | No |
| Uses common DH primes | No, DHE suites not supported |
| DH public server param (Ys) reuse | No, DHE suites not supported |
| ECDH public server param reuse | No, ECDHE suites not supported |
| Supported Named Groups | - |
| SSL 2 handshake compatibility | Yes |
|
HTTP Requests
|
|
1 https://www.kfb.or.kr/
(HTTP/1.1 302 Found)
| 1 | |
| Date | Thu, 19 Jun 2025 08:14:29 GMT | |
| Content-Type | text/html; charset=euc-kr | |
| Transfer-Encoding | chunked | |
| Connection | close | |
| Set-Cookie | PHPSESSID=fnc8apumuo4503u3a8rgh6dbr7; path=/ | |
| Expires | Thu, 19 Nov 1981 08:52:00 GMT | |
| Cache-Control | no-store, no-cache, must-revalidate | |
| Pragma | no-cache | |
| Location | ./main/main.php | |
|
2 https://www.kfb.or.kr/./main/main.php
(HTTP/1.1 200 OK)
| 2 | |
| Date | Thu, 19 Jun 2025 08:14:30 GMT | |
| Content-Type | text/html; charset=euc-kr | |
| Transfer-Encoding | chunked | |
| Connection | close | |
| Expires | Thu, 19 Nov 1981 08:52:00 GMT | |
| Cache-Control | no-store, no-cache, must-revalidate | |
| Pragma | no-cache | |
| Miscellaneous | |
| Test date | Thu, 19 Jun 2025 08:14:11 UTC |
| Test duration | 120.185 seconds |
| HTTP status code | 200 |
| HTTP server signature | - |
| Server hostname | - |
SSL Report v2.4.0