Encrypt electronic billing chain with MD5-RSA 1024 for Mexico rules

Hi,
I'm working in a task to create electronic billing for Mexico Rules, to do this; I need to use programs that will encrypt the source information.
For this reason, I'm looking how to use the method RSA with MD5 Encryption 1024 in some information that is stored in an Oracle Data Base.
All this is for the new legislations rules in Mexico to use electronic billing.
Please, if you have any reference about this, let me know.
Thanks and regards.

Hi Justin,
Tks for you answer.
Look, there are 2 steps where I’m working:
1. - First I need to use the MD5 to sign the original source chain that contains all the information of the electronic billing; then after obtain the sign,
2. - I need to encrypt the data using the encryption algorithm RSA of 1024 bits.
All this is the complement to give a valid electronic billing.
I will review the package that you mentioned, but if you have any other reference about this I will appreciate it.
Regards.

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Message was edited by:
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Encrypting String with MD5, then storing as String

Hello.
I believe I have a way to do this but I want to verify that:
1) It is doing the action that I want
2) There is no easier/simpler way with less lines
What I am looking to do is take a String that is passed to the method, encrypt it using MD5 algorithm, and then store the result back into String form.
In the following code encyptedPassword is the String to-be encrypted and this.encryptedPassword is the String for where I would like to save the result.
try
            MessageDigest md=MessageDigest.getInstance("MD5");
            md.reset();
            md.update(encryptedPassword.getBytes());
            byte raw[]=md.digest();
            for(int x=0; x<raw.length;x++)
                this.encryptedPassword+=(char)raw[x];
        catch(NoSuchAlgorithmException e)
            e.printStackTrace();
        }

You will have to hex-encode or base-64-encode the encrypted data. String is not a container for binary data, and encrypted data is binary data.

Path does not chain with any of the trust anchors, but included in cacerts?

I have implemented a CA that has a self-signed certificate:<CN=ps, OU=JurgenAgten, O=KUL, L=Leuven, C=BE>
I have a cert from this CA: <CN=realAnonym>
With this cert, I want to make a SSL connection to some server with client authentication.
<CN=ps, OU=JurgenAgten, O=KUL, L=Leuven, C=BE> is included in the cacerts-file of the server.
<CN=ps, OU=JurgenAgten, O=KUL, L=Leuven, C=BE> (Part of trusted CA's) in my opinion match with <CN=ps, OU=JurgenAgten, O=KUL, L=Leuven, C=BE> (second certificate in certificatechain of <CN=realAnonym>).
But it doesn't ???
execute the server with -Djavax.net.debug=ssl,handshake gives:
<CN=GeoTrust Global CA, O=GeoTrust Inc., C=US>
<CN=Entrust.net Certification Authority (2048), OU=(c) 1999 Entrust.net Limited,
OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.), O=Entrust.net>
<CN=Equifax Secure Global eBusiness CA-1, O=Equifax Secure Inc., C=US>
<OU=Go Daddy Class 2 Certification Authority, O="The Go Daddy Group, Inc.", C=US
>
<CN=VeriSign Class 1 Public Primary Certification Authority - G3, OU="(c) 1999 V
eriSign, Inc. - For authorized use only", OU=VeriSign Trust Network, O="VeriSign
, Inc.", C=US>
<CN=ps, OU=JurgenAgten, O=KUL, L=Leuven, C=BE> (Part of trusted CA's)<OU=VeriSign Trust Network, OU="(c) 1998 VeriSign, Inc. - For authorized use only", OU=Class 2 Public Primary Certification Authority - G2, O="VeriSign, Inc.",
C=US>
<OU=VeriSign Trust Network, OU="(c) 1998 VeriSign, Inc. - For authorized use onl
y", OU=Class 1 Public Primary Certification Authority - G2, O="VeriSign, Inc.",
C=US>
*** ServerHelloDone
main, WRITE: TLSv1 Handshake, length = 7383
main, READ: TLSv1 Handshake, length = 3784
*** Certificate chain
chain [0] = [
Version: V3
Subject: CN=realAnonym (client certificate)Signature Algorithm: MD5withRSA, OID = 1.2.840.113549.1.1.4
Key: Sun RSA public key, 1024 bits
modulus: 127355714484211456591612779667470666909980708602501730899657524388577
49850208930275081977822300971032883864332221450883863390126466833031349667099122
38288059447802849568096837640845268449147677304455823253593898716430967402259872
25271396467992796337646786345774935629264123070013042903682567551911526037603651
public exponent: 65537
Validity: [From: Fri Nov 18 00:00:00 CET 2005,
               To: Fri Nov 03 12:04:28 CET 2006]
Issuer: C=BE, L=Leuven, O=KUL, OU=JurgenAgten, CN=ps (Clent certificate issuer) SerialNumber: [    0107a404 7764]
Certificate Extensions: 3
[1]: ObjectId: 2.1.2.3.102 Criticality=false
Extension unknown: DER encoded OCTET string =
0000: 04 02 31 00 ..1.
[2]: ObjectId: 2.1.2.3.101 Criticality=false
Extension unknown: DER encoded OCTET string =
0000: 04 1D 31 1B 30 19 13 02 4C 64 02 02 03 E8 13 06 ..1.0...Ld......
0010: 61 7A 65 72 74 79 13 07 41 72 62 69 74 65 72 azerty..Arbiter
[3]: ObjectId: 2.1.2.3.100 Criticality=false
Extension unknown: DER encoded OCTET string =
0000: 04 82 09 F7 30 82 09 F3 03 82 09 6B 00 AC ED 00 ....0......k....
0010: 05 73 72 00 19 6A 61 76 61 78 2E 63 72 79 70 74 .sr..javax.crypt
0020: 6F 2E 53 65 61 6C 65 64 4F 62 6A 65 63 74 3E 36 o.SealedObject>6
0030: 3D A6 C3 B7 54 70 02 00 04 5B 00 0D 65 6E 63 6F =...Tp...[..enco
0040: 64 65 64 50 61 72 61 6D 73 74 00 02 5B 42 5B 00 dedParamst..[B[. .
09D0: C8 18 22 75 E9 23 56 96   9E 7E 71 C5 7B 6B 95 5B .."u.#V...q..k.[
09E0: DF AB 6D 0A 39 0C E3 74   F1 BA 5A 9C 50 76 0B 3E ..m.9..t..Z.Pv.>
09F0: 13 79 20 2E B5 B1 FC 83   76 97 A2                 .y .....v..
Algorithm: [MD5withRSA]
Signature:
0000: 78 DC AF 04 6F D9 F2 54 6A 5D CB 99 4E 45 90 25 x...o..Tj]..NE.%
0010: 8D 4B 24 17 BF BB B9 1D AB 1D 7C EF 3D F5 01 9C .K$.........=...
0020: 49 9C 81 CC 64 0C F4 38 37 F5 BB CF 28 F7 FB 2F I...d..87...(../
0030: 5E 91 21 E3 A1 B0 92 90 F7 DC 92 F6 A8 6C E3 78 ^.!..........l.x
0040: 36 B7 36 B8 05 6B 17 8D C8 CF AF D2 9B F6 89 B2 6.6..k..........
0050: 5B 20 E4 14 0B 98 1C 50 69 FC CC C1 6F 6C F0 EA [ .....Pi...ol..
0060: 63 1E 64 71 BA 41 3D B6 23 7A 72 91 01 B4 B2 23 c.dq.A=.#zr....#
0070: 40 2D 62 48 E0 84 0E FA D7 EF E1 9C F5 92 DF 42 @-bH...........B
chain [1] = [
Version: V1
Subject: CN=ps, OU=JurgenAgten, O=KUL, L=Leuven, C=BE (Client certificatechain[1] the CA) Signature Algorithm: MD5withRSA, OID = 1.2.840.113549.1.1.4
Key: Sun RSA public key, 1024 bits
modulus: 117566584630083419996551735329369567910739541932314407531248741596590
25394436071793849489119529408325801928292164157908793562030900052755912331352764
88920380150146179015561996002426862508085279249965768014151302583170908492349232
49673303864165396475282399840755746956422674084689146502252850565325504345529883
public exponent: 65537
Validity: [From: Fri Nov 18 16:31:50 CET 2005,
               To: Thu Feb 16 16:31:50 CET 2006]
Issuer: CN=ps, OU=JurgenAgten, O=KUL, L=Leuven, C=BE (is self-signed)SerialNumber: [    437df3e6]
Algorithm: [MD5withRSA]
Signature:
0000: A5 0B D2 F7 C9 4A BF E5 00 C2 42 50 DF EB 33 A6 .....J....BP..3.
0010: DB 1A 7F C5 38 DE 4A FA 23 09 5C 09 5D 68 73 CD ....8.J.#.\.]hs.
0020: 72 B7 A4 9A 50 30 ED BE 35 28 6D 19 21 77 B6 32 r...P0..5(m.!w.2
0030: FE 83 22 CE EF 7F F4 3E 6E 52 B0 E9 9D 14 EA 48 .."....>nR.....H
0040: A4 0B DC 41 C2 86 D4 48 6A AD 49 46 84 10 FA 69 ...A...Hj.IF...i
0050: 7D C6 81 0C AF BA 88 D5 C1 30 BA 1A 5A E5 D3 24 .........0..Z..$
0060: 0A 3E 15 5A B5 99 A8 B2 32 80 85 D4 72 3F F4 60 .>.Z....2...r?.`
0070: 18 BA 11 3A 91 35 D9 F9 CA D3 C9 AE 2F 3E 39 E1 ...:.5....../>9.
main, SEND TLSv1 ALERT: fatal, description = certificate_unknown
main, WRITE: TLSv1 Alert, length = 2
main, called closeSocket()
main, handling exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors
main, IOException in getSession(): javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors

It is not even done the first validation part on the client side ( if you have not cut the debugs).
On both, your client and your server, you should add your CA certificate to the trust set. You can first leave the client authentication aside, and do it on the client code to be sure the client authenticates the server's certificate properly; later you can add the same functionality to your server when checking the client certificate. The mechanism provided to deploy this, is either through system property javax.net.ssl.trustStore to introduce your truststore or introcuding your own trustmanager in the codes.
In case, you want to set it dynamically in the program code, you should consider using your extension of X509TrustManager() . Aussuming it be YourTrustManager, you go like this:
//YourTrustManager implements javax.net.ssl.X509TrustManager
SSLContext sslContext = SSLContext.getInstance("SSLv3");
YouTrustManager tm = new YourTrustManager();
TrustManager tms[] = {tm};
sslContext.init(null, tms, null);
HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());Further, you might need to change the default hostname verifier on the HttpsConnection before you can establish a successful handshake with the pattern you used for your certificates.
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LDAP authentication with MD5 passwords

Hi,
in one of our Linux servers we have MD5 passwords stored in /etc/shadow. We want to implement pam_ldap on that machine, and move passwords to an LDAP database.
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Thanks you for your reply.
Our openldap version is openldap-2.3.39
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Electronic billing

Dear all,
I have a question regarding electronic billing.
The issue is not sending invoices electronically to the customers. The issue is that some customers require as well a signed receipt attached to the electronic invoice.
My question is if you know if there is a standard SAP solution to achieve this result
In my opinion this can't be achieved automatically without some in house development.
Any suggestions from your side is much appreciated.
Kind regards

Dear Elias,
Thanks a lot for your answer.
Unfortunately my issue is not with electronic billing invoicing and the signature of it.
Let me try to explain more in detail.
Normally when you do your billing your are using the data from the sales order to create your billing document and eventually as well the customer invoice.
We have no issue with sending the customer invoice electronically via PDF format.
The issue is that some customers require next to the customer invoice as well an accompanying form like a purchase order form. Probably it's an easy way then for the customer once they receive the invoice to compare it with the purchase order they send to the vendor.
The issue is that the customer purchase purchase order form is not stored in our system. This means we have to scan the forms and store them somewhere in the system and then at time of billing we will then need to attach them to the invoice so that both the customer invoice and purchase order form are then send electronically.
I was wondering if someone has experience with this?
Kind regards

Crypting with MD5

Hi,
I haven't worked with cryptogaphy at all and I'm looking for a simple code that crypt with MD5.
I've found lots of complicated codes but is there anything easier to use so that I can understand it?
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Thanks/H

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Bye,
Sebastian

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Click here and ask the iTunes Store staff for assistance.
(102938)

My iphone says "theres a billing problem with a previous purchase please go to purchase history to correct the problem" but when i go to it nothing happens and is not telling me nothing Now i cant download no apps

My iphone says "theres a billing problem with a previous purchase please go to purchase history to correct the problem" but when i go to it nothing happens and is not telling me nothing Now i cant download no apps

You can contact the iTunes Store Customer Service department at no charge using the form on their Support page (select the category and subcategory closest to the issue you're reporting and you'll find an "Email Us" button) and explain your problem to them.
Copied from Varjak Paw in :https://discussions.apple.com/thread/2598671

Download or upgrade current and free apps says there's a billing problem with previous purchase previous purchase what can I do to fix it

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Hi ..
I replied to you here > Download or upgrade current and free apps says there's a billing problem with previous purchase previous purchase what can I do to fix it

Encrypt electronic billing chain with MD5-RSA 1024 for Mexico rules

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