Active4 months ago
German-military-watches.pdf german wwii army sweep seconds intelligence watch ***** below is photo of genuine di-h above was posted online as is ***** i have had only two of these in 20 years the german military property mark”di serial h” was utilized for the army intelligence service more german wwii watch. Best service orient world keygen keygen best service orient best service orient world keygen torrents: Title Category Size. Software > Windows: 58.9 MB: 0: 0. Adobe is changing the world through digital experiences. Service number (United States Army). Were first created in 1918 as a result of the United States Army becoming involved in World War I and the need for a record tracking system capable of indexing the millions of soldiers who were joining the ranks of the National Army. 'How to Determine Army Serial Numbers' Last edited on 30 January.
I have problems to understand what is the difference between the serial number of a certificate and its SHA1 hash.
The MSDN says:
Serial number A number that uniquely identifies the certificate and is issued by the certification authority.
So can I identify a certificate by its serial number, right?
Wikipedia says for the hash:
Thumbprint: The hash itself, used as an abbreviated form of the public key certificate.
So the hash identifies the (e.g. RSA) key.
I currently do some research on Android app certificates and I found some interesting certificates:
And there are a lot more which share the same serial, but have different hashes.
So there can be a certificate with different key? Who is actually creating the serial number when creating a certificate for an Android app? For the hash it is clear, but can I create a new certificate with the same serial number as another cert?
Can I be sure that a certificate with the same serial number was created by the same person?
Vilican2,45577 gold badges1818 silver badges3333 bronze badges
reoxreox48211 gold badge55 silver badges1010 bronze badges
2 Answers
In a certificate, the serial number is chosen by the CA which issued the certificate. It is just written in the certificate. The CA can choose the serial number in any way as it sees fit, not necessarily randomly (and it has to fit in 20 bytes). A CA is supposed to choose unique serial numbers, that is, unique for the CA. You cannot count on a serial number being unique worldwide; in the dream world of X.509, it is the pair issuerDN+serial which is unique worldwide (each CA having its own unique distinguished name, and taking care not to reuse serial numbers).
The thumbprint is a hash value computed over the complete certificate, which includes all its fields, including the signature. That one is unique worldwide, for a given certificate, up to the inherent collision resistance of the used hash function. Microsoft software tends to use SHA-1, for which some theoretical weaknesses are known, but no actual collision has been produced (yet). A collision attack on SHA-1 has now been demonstrated by researchers from CWI and Google.
(The thumbprints you show appear to consist of 40 hexadecimal characters, i.e. 160 bits, which again points at SHA-1 as the plausibly used hash function.)
Thomas PorninThomas Pornin293k5252 gold badges699699 silver badges899899 bronze badges
The thumbprint is the sha1sum or sha256sum of the certificate in its binary .DER format. That is, from a Unix terminal you run:
The hexademical output of that command is your thumbprint. It is also called the fingerprint. Try it, and you will see.
typelogictypelogic
protected by Community♦Apr 6 at 18:57
Best Service Orient World Serial Number List
Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Would you like to answer one of these unanswered questions instead?
Would you like to answer one of these unanswered questions instead?